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"So, I swear this began with me offering water and Band-Aids, and the next thing you know, I'm the Meredith Grey of Sherwood Forest. I'm sorry if stealing from my med school makes me a bad person."
"It doesn't. It actually makes you deeper than I thought."
—Mary Hamilton and Kate Kane[src]

Mary Hamilton (born May 17, 1995)[1] is a medical student at Gotham University and influencer-in-the-making who secretly runs an illegal clinic to help Gotham's impoverished communities. She is the daughter of the late Catherine Hamilton-Kane, the step-daughter of Jacob Kane, and the step-sister of Kate Kane.

Biography

Original multiverse

Early life

Mary was born on May 17, 1995 in Gotham City to an unknown father and Catherine Hamilton, the heiress of the Hamilton Dynamics arms fortune.

The Hamilton-Kane wedding news

9-year-old Mary on an article regarding her mother's marriage with Jacob Kane.

On May 25, 2004,[2] Catherine married Jacob Kane and Mary met her step-sister, Kate Kane.[3] However, being quite different from one another, the two never really managed to become close, despite Mary's best efforts at being friendly.[4]

Growing up, Mary became very active on social media, to the point of being considered sort of an influencer,[5] much to her mother's dismay.

Sometime after graduating college, she enrolled in Gotham University as a medical student. Mary claimed it was only so she could find her "future husband", who she wanted to be a rich doctor. In actuality though, Mary was very interested in medicine and secretly became an excellent student.[3] At Gotham University, Mary attended three classes taught by Dr. Ethan Campbell.[6]

Secret clinic

At some point before 2018, Mary started to distribute water and Band-Aids to residents of the poor neighborhood of Bennett Ave.. Sympathetic towards the people's plight, Mary secretly began using her medical expertise and Gotham University's funds to open an illegal clinic in the area.[3]

The kidnapping of Sophie Moore

Mary Hamilton attends the switching of the Bat-Signal

Mary attends the switching off of the Bat-Signal.

In late 2018, Mary attended the switching off of the Bat-Signal with her mother, Catherine. After Sophie Moore was kidnapped at the event, Mary called her step-sister, Kate, to come home. Mary organized a surprise welcome-home party for Kate, during which Mary talked her head off. Kate asked why she called her, and Mary revealed that she accidentally discovered a box of pictures of her relationship with Sophie, and thought that she would want to be in Gotham for her. Mary was pulled away by her mother to take a photo with a councilwoman.

Mary stitch up Kate's wounds at her illegal clinic

Mary stitches up Kate's wounds at her illegal clinic.

The following day, Mary was working at her clinic when Kate was left on the doorstep. She was brought in and Mary helped stitch up a wound on her arm, when she explained all about the clinic, while also tending to an old man. Later a member of the Wonderland gang was brought into her clinic, and has somehow confessed Sophie's location.

Mary listen to a child describing the Bat

Mary listens to a child describing the Bat.

The next day, after the city thought that Batman has returned, Mary listened to a child as he described how the Bat flew.[3]

Nearly killed by Alice

Kane penthouse

Breakfast at Kane penthouse.

The following day, during breakfast, as her mother spoke about business at the phone, Mary watched a video of a baby turtle eating strawberry and showed it to an annoyed Kate. Then, after Jacob asked Kate if she wanted to reconsider the idea of joining the Crows and she dismissed it again, Mary asked if it was due to Sophie, saying she was shocked that she was now married to a man and asking out loud what was her actual sexual orientation, being cut out by Kate, who reveal to Jacob her suspicious that Alice was actually Beth, shocking everyone.

Mary asks Kate to have dinner together

Mary asks Kate to have dinner together.

Later that day, Kate visited Mary's clinic in order to speak with one of Alice's goons she knew was brought there the previous night, and gave him a coded message to deliver to his boss. Then, after the goon was gone, Mary asked Kate if she wanted to have dinner with her, since they hadn't been able to spend time together after she came back. Kate accepted her invitation and they agreed to meet that evening out of the clinic.

Mary is attacked by Dodgson

Mary is attacked by Dodgson.

Mary waited a long time but, at the time of the appointment Kate did not show up (being at a secret meeting at Burnside Park with Alice) however, after a brief blackout in the building, Chuck Dodgson appeared and attacked her with the intent of murder her on Alice's orders as she was jealous of her role as Kate's "new sister". Mary managed to defend herself by injuring Dodgson in the leg with a scalpel and locking herself in a closet, then was saved by Batwoman.

Mary tell Kate that she's favoring the supposedly deceased Beth over her

Mary tell Kate that she's favoring the supposedly deceased Beth over her.

The following morning Kate visited Mary's clinic in order to apologize, however as she entered, Mary, still traumatized for the previous night pointed a gun to her then, after calming down, she scolded her for having ditched her, explaining the reason why Alice had her attacked, claiming to find it ironic, as she felt Kate didn't consider her a sister at all. Kate replied that it wasn't true but Mary didn't want to listen to her and instead asked her if it was worth it and to let Alice know that "she wasn't a threat", before to walk away in anger.[7]

Mary is confronted by Sophie

Mary is confronted by Sophie.

After the incident, Mary spent several nights working late at her clinic and, one morning, after having vaccinated a kid and rewarding her with a sweet for not having cried after the sting, she came back to the Kane penthouse pretending she spent the whole night partying, however she was confronted by Sophie, who informed that she asked her father to be assigned to her protection due to the girl having became Alice's target.

Sophie escorts Mary at Gotham University

Sophie escorts Mary at Gotham University.

Much to Mary's dismay and embarrassment, Sophie started to follow her the whole day, even during her classes at Gotham University, prompting her to stated that she couldn't find her "future husband" if she kept following her around, then asking of her own marriage; Sophie avoided answering by asking instead about Kate and why she continued to refuse to join the Crows, to which Mary replied that it was because Sophie is one of them.

Kate, Mary and Sophie awkwardly take an elevator together

An embrassing elevator trip.

That night at Tommy Elliot's party, finding Mary and Sophie together in the elevator she was entered, Kate asked what was happening to which her step-sister complained about having a "baby-sitter", she and Kate mutually commented between one another how annoying Sophie was, then the elevator began a long climb dominated by an embarrassed silence.

Later at the party, Mary complained to her mother about giving her a bodyguard, but she replied it was inevitable as they lived in difficult times;
Sophie helps Mary escape the elevator

Sophie helps Mary escape the elevator.

few moments later, having received a phone call from Alice (who was at their house) Jacob panicked and ordered his men to escort his family away, however due to Tommy having planted bombs on three elevators, Mary found herself stuck in one of it alongside Sophie and her husband, watching them bickering about Sophie not having told him she knew Kate when they were at Point Rock Academy, before they managed to escape and get her out of it.
Mary saves a woman's life at Elliot Tower

Mary saves a woman's life at Elliot Tower.

On their way out of Elliot Tower, Mary and Sophie run in some people wounded by the explosion of the first elevator and she managed at first sight to locate a woman who wasn't adequately rescued, making a correct diagnosis of her condition and saving her life under the astonished gaze of a paramedic and the same Sophie.[5]

Assisting Batwoman

Batwoman brings Dodgson to Mary's clinic

Batwoman brings Dodgson to Mary's clinic.

After Dodgson developed an infection due to his days of captivity at the hand of Batwoman, she brought him to Mary's clinic asking her to deal with his wound with the maximum discretion. Mary, declaring to be a "big fan" of the vigilante reluctantly accepted despite the man having attempted to kill her.

Mary tricks Dodgson into revealing some details of Alice's plan

Mary tricks Dodgson into revealing some details of Alice's plan.

That evening, while he was handcuffed to the bed and drugged with morphine, Dodgson began hallucinating, calling for his boss and lover Alice. Hearing that, Mary decided to impersonate Alice in an attempt to extorting him part of the latter's villainous plan and prompting him to reveal her that a key component to it was a mysterious figure named "Mouse".
Mary after being complimented by Batwoman

Mary after being complimented by Batwoman.

Later, Batwoman came back to the clinic asking Mary for Dodgson conditions and she claimed he was stable, also referring her what she had discovered regarding Alice's intentions, which prompted Batwoman to plant a subdermal transmitter on Dodgson in order to track him after he returned to Alice, while complimenting Mary for her work.[8]
Catherine confess her past deed to Mary

Catherine confess her past deed to Mary.

The next day, during a walk by the river with her mother, Catherine revealed to Mary that years ago she made Jacob believe that Beth was dead by making pass deer bone fragments for Beth's and paying the coroner to manipulate the DNA test, so that he and Kate would move on. Mary was deeply unsettled by her mother's statement, deeming it as an "horrible thing", and walked away from her in a state of shock.

Wayne Tower concierge

Mary stormed drunk into Wayne Tower and is taken under the concierge's custody.

Distressed, Mary got completely drunk and stormed into the Wayne Tower demanding to speak with her step-sister, being then taken under the custody of the building concierge and escorted to the head of security, Luke Fox who introduced to her as Kate's assistant explaining she was not there and that he can deliver a message to her if needed, to which Mary began a confusing explanation of which Luke understood only that her mother may or may not have killed a deer, prompting the girl to explain everything from the beginning.

Drunken Mary lashes out at Luke

Drunken Mary lashes out at Luke.

Mary spent the whole day at Wayne Tower complaining to Luke about being the daughter of the "Wicked Witch of Gotham". Upon realized that Alice was actually Beth as Kate had always believed, she asked Luke if Kate was with her, which he confirmed it. Mary bitterly lashed out at Luke how Kate still favored a serial killer to the former despite all her best effort to be a good sister.

Mary watches Luke's researches

Mary watches Luke's researches.

After a while, still drunken due to the alcoholic beverages kept in Bruce's office, she watched the researches Luke was doing about Arkham Asylum outbreak, discovering the authorities have covered up everything about it, then she noticed the footage about Alice being the Skin Pirate and get hungry of pizza. That evening, after ordering and eating a pizza box, Mary apologized to Luke for disturbing him all day and left the building, asking him to simply tell Kate that she was sorry.[9]

Sophie awakens in Mary's secret clinic

Sophie awakens in Mary's secret clinic.

Few nights later, after Sophie was wounded in a gunfire at 200 of Rucka Avenue, Batwoman brought her to Mary's clinic asking her to take care of her and prevent her from leaving the facility. Despite her skepticism she obeyed and nursed the woman back to health; after Sophie woke up she asked were she was, to which Mary revealed the truth about her illegal clinic then, noticing she was handcuffed, Sophie asked to be released and Mary replied it was due to Batwoman's order. Frustrated, Sophie stated that the reason why Batwoman didn't want her to leave was that she knew her real identity, however Mary replied that she had no interest in that knowledge.

Mary gives a box of ibuprofen and some warnings to Sophie

Mary gives a box of ibuprofen and some warnings to Sophie.

Later, Sophie managed to free herself and was about to leave the clinic being intercepted by Mary, who gave her some medical advises and a box of ibuprofen, urging her not to reveal to her step-father about her clinic nor Batwoman's identity due to betray people was kinda becoming "her thing" and she shouldn't hurt Batwoman the way she hurt Kate several years ago.

Mary warns Batwoman that Sophie knows her identity

Mary warns Batwoman that Sophie knows her identity.

Then, after Batwoman came to visit her, asking about Sophie, Mary explained she had let her go despite the fact she probably knew her identity and would reveal it to the Crows' commander. Despite she expected the vigilante to be angered, she was surprised when Batwoman thanked her for saving Sophie and quietly left.[10]

Family crisis

Catherine and Mary in a limousine

Catherine and Mary in a limousine.

After Jacob asked to divorce from Catherine, Mary reluctantly accompanied her mother to see the lawyers; while they were on limousine she stated that she had yet to forgive her and wished to be everywhere but there with her, Catherine said that she would have understood her action after becoming a mother as well, then she was called by Hamilton Dynamics and informed of their secret weapon's disappearance as well as Dean Deveraux's death.

Mary tries to talk with Kate about their family crisis

Mary tries to talk with Kate about their family crisis.

Later that night, Mary introduced into the Wayne Tower once again thanks to the help of her friend Carl the receptionist, to whom she offered a Frappuccino. After reaching Bruce's former office in order to speak to Kate, she waved at Luke and introduced herself to Julia Pennyworth which Kate explained was her other assistant, after Mary commented on having two assistants in a real estate firm with no real estate, Kate told her that she was busy and that would have called her the following day, prompting Mary to ask if she was at least a little shaken about their family collapsing a moment before getting out of the building.

Kate and Mary put the beginning touches on their gay bar

Kate and Mary put the beginning touches on their new gay bar in front of Alessandro's.

The next day, Kate invited Mary at the first place she had bought with her firm, explaining her intention to open a gay bar in it as retaliation to Alessandro's homophobia, to which Mary gladly suggested to be the one to deal with design.[4]

Mary tries to convince Kate to come to the annual Humanitarian Ball

Mary tries to convince Kate to come to the annual Humanitarian Ball.

After convincing her step-father, actually Mouse in disguise, Mary went to Kate asking her to join her and her mother at Gotham's annual Humanitarian Ball where Catherine would receive the Humanitarian Award; however her step-sister stated that she couldn't forgive Catherine for what she had done, prompting Mary to said she spent the past months forgiving Beth despite being a murderer to which Kate responded it was different as she was "her family", thus deeply hurting Mary since this implied she was not. The girl then leave their bar, revealing to Kate that Jacob had accepted to do it for her.

A toast in Catherine's honor

A toast in Catherine's honor.

That night, she went to the Orpheum Theatre with "Jacob" and Catherine, making a toast of champagne in the latter honor while on their limousine. Then after in the middle of her speech Catherine started to reveal a series of crimes in front of the audience due to Alice blackmail (whose men had surrounded de building infiltrating the Crows) and subsequently collapsed, Mary help to transport her to the back of the stage and called the hospital while "Jacob" left stating that he was going to look for help.

Alice tells Mary and Catherine there's only enough antidote for one of them

Alice tells Mary and Catherine there's only enough antidote for one of them.

However, as the man leave Alice entered the room revealing that Catherine was poisoned with a Hamilton Dynamics toxin by Mouse posing as Jacob and that she got the antidote with her. After pouring the antidote into a teacup, Alice forced Catherine to apologize to her for the years of suffering she endured because of her deception then, having received said apology, she revealed that Mary was poisoned too and that there was only enough antidote for one of them.

Mary tries to revive her mother

Mary tries to revive her mother.

Obeying her mother's last wish, Mary took the antidote. She broke down in tears as Catherine declared that raising her daughter was the only good thing that she had done in her life; Catherine revealed she was aware about Mary's activities with her clinic, much to the latter's shock, and was proud of her. Catherine then succumbed to the poison and died in Mary's arms. Mary desperately performed CPR on Catherine in an attempt to revive her mother, to no avail.

Mary makes Kate realize that Beth wasn't worth it

Mary makes Kate realize that Beth wasn't worth it.

An upset Mary returned to her clinic, where she was reached by Kate. However, Mary spitefully rejected her step-sister, stating that if she hadn't given Beth the benefit of doubt so many times, her mother would still be alive. Mary asked one more time if "Alice was worth it", prompting Kate to finally admit she was not, despite Mary spitefully stated that now it was too late to realize it.[11]

Anti-Monitor Crisis

During the Anti-Monitor Crisis, Mary as well as everyone in the multiverse except for the seven Paragons, was killed in an antimatter wave by the Anti-Monitor on December 10, 2019,[12] only to be restored a month later, after the Paragons and the Spectre created a new universe.[13]

New multiverse

Working on Jacob's trial

Mary shuts down her social media accounts

Mary shuts down her social media accounts.

A week later, due to the several critics she received via social for her family and company's corruption, Mary decided to shut down all of her accounts recording a last live to explain all of her followers that it would be better for everyone.

Right as she was doing it, Kate entered her secret clinic asking once more how does she felt, however Mary answered with a series of snarky remarks on her twin sister's role in her mother murder.
Mary explains to Kate how she is taking care of Jacob's trial

Mary explains to Kate how she is taking care of Jacob's trial.

Mary explained that she hired various team of lawyers, including Hewitt & Associates in order to take care of Jacob defense at the trial while Sophie has taken charge of a strike team to arrest Alice and Mouse, also stating that she was buisy trying to find a plastic surgeon willing to testify that Mouse was wearing a mask made of skin grafts to pose as her adoptive father. As Kate asked Mary how could she help her, the latter respond telling her that she could ask her sister to stop dissacrating her mother's grave daily, remembering that she knew Alice could have done something that evil, yet Kate choose to ignore her.
Mary calls Jacob in jail

Mary calls Jacob in jail.

Later, Mary called Jacob in prison explaining that she managed to postpone his hearing for a week in order not to have it coincide with Valentine's Day, yet she still had difficulties in finding a professional to testify that "face exchange" could be possible. Jacob replied that she should talk with someone and that despite all the differences of opinion between him and her mother, he never stopped wanting to be her father, to which the latter responded that she had no time for feeling sorry for herself and that she needed to concentrate on what freeing him.

Mary talks to Dr. Campbell

Mary talks to Dr. Campbell.

That evening, Mary visited Dr. Ethan Campbell after one of his classes at Gotham University asking him to be a witness in Jacob's trial, however the man politely dismissed the idea of a man completely resembling another as sci-fi, suggesting that the girl was still traumatized because of the event.
Mary dismantles her secret clinic

Mary dismantles her secret clinic.

While walking home and talking with Sophie via phone, Mary had the impression of seeing a woman who looked like Alice entering Gotham University and had her sent a strike team, however, few hours later Sophie went at Mary's clinic while she was dismantling it, having becoming disillused at her ability of saving people due to losing her mom, and told her that they didn't find the villainess, thus suggesting that the girl was put under extreme duress and she needed to take time to cope with her loss and simply griev for her mother.
Mary and Kate reconcile

Mary and Kate reconcile.

The following day, Kate visited Mary in her clinic after she had yet another unsuccessful call to a surgeon. Mary broke down in tears and, without saying a word, the two hugged and reconcile.[6]

Trying to save Beth Kane's doppelgänger

Mary investigates the second Beth with Kate and Luke

Mary investigates the second Beth with Kate and Luke.

The following day, Sophie informed her that a woman who looked identical to Beth entered Kate's office and had a brief skirmish with the latter, deducing it was the same woman she saw at Gotham University, Mary went at Wayne Enterprises helping Luke and Kate to check the belongins that the mysterious woman left behind; after discovering the intruder's DNA perfectly matched that of Alice - who was still locked under Crows custody - Mary found the doppelgänger's 300 page dissertation on theoretical extragalactic astrophysics and cosmology, thus deciding to go asking Gotham University if someone knew this "Beth".

Mary helps Beth to pose as Alice

Mary helps Beth to pose as Alice.

Later, after Mouse kidnapped Kate asking Alice's release on exchange for her freedom and that of Bryan Akins and Steven Forbes and the other Beth offered to pretend to be Alice in order to save her, Mary helped the woman dress up to look the part of the villain and she was confused because the last time she had looked at Alice, her mom was dying in her arms after being poisoned. Beth told Mary that she couldn't help but feel guilty for this Earth's Beth causing all that harm to her as Alice, to which Mary pointed out she shouldn't feel that way as she was "nothing like that bitch".

Mary holds a birthday party for her step-sister

Mary holds a birthday party for her step-sister.

Later that night, after Kate, the boys and Beth were all saved, Mary organized a surprise birthday party for her step-sister at the Hold Up together with Luke and Beth; there she told Kate that despite resenting Alice and never really understanding why she wanted to reach her before that day, but after meeting the other Beth she was starting to understand what she missed about her sister. Mary also correctly guessed the existence of the Multiverse, its collapse, and the birth of Earth-Prime, then dismissing it as an impossible idea and watched as, after blowing their cake's candles together with Kate, Beth started to get a splitting headache.[2]

Mary and Luke tries to sneak Beth through a Crows' checkpoint

Mary and Luke tries to sneak Beth through a Crows' checkpoint.

Mary and Luke immediately tried to transport Beth at the Gotham General Hospital but they were stopped at a checkpoint of the Crows, who were looking for Alice with the order to kill. They managed to avoid arrest thank to Batwoman's intervention however they are eventually forced to come back at the Wayne Tower, where Mary extracted a blood sample from Beth and analyzed it discovering that her blood cells were rapidly deteriorating, to which the latter theorized that the new Universe was literally not big enough for both her and Alice, who were sucking up life force from each other to stay alive; however Mary claimed that their degeneration would eventually kill them both in seven hours.
Mary analyzes Beth's blood

Mary analyzes Beth's blood.

Shocked, Kate ask Luke, Mary and Beth herself to find a solution as Gotham's most intelligent people, while she tried to stop Sophie's hunt for Alice through all the city. Later, Mary went to her clinic to consult some of her books, however she was approached by Alice, who reminded her of the antitode she drank the night she poisoned her and her mother, which was still in her blood and could cure any disease.
Mary tells Alice she doesn't deserve to live

Mary tells Alice she doesn't deserve to live.

The villainess then knocked Mary down and extracted a sample of her blood, however she woke up and, taking advantage of another of Alice's headaches, attacked her eventually managing to subduing and handcuffing her to a cot in her clinic. Alice begged her to have that blood saying it was the only thing that could save her life, to which Mary replied she can't imagine someone less deserving of living.
Mary tells Kate to take her choice

Mary tells Kate to take her choice.

Then, Mary left her clinic and met with Kate out of the Wayne Tower in order to giving her the syringe with her blood explaining that it could make one of the two women's life last longer and she could ever choose to save Beth, one of the most caring persons she met, or Alice, the psycho who killed her mother. Leaving the ultimate choice to her step-sister, Mary left the scene.[14]

Discovering Kate's secret

Kate, Luke and Mary discusses the aftermath of Beth's murder

Kate, Luke and Mary discuss the aftermath of Beth's murder.

The following morning, Kate, Luke and Mary discussed the aftermath of Beth's murder; Mary stated that it wasn't supposed to be her the one to die, and tryed to comfort Luke about not having been able to protect her. He replied that they need to figure out who the shooter was, prompting Mary to point out they need to prepare themselves for the real Alice, as the Crows now believe her to be dead and that she would probably have a grudge against Kate since she choose to save her doppelgänger over her. Then, Mary told Kate that nevertheless of all the consequences she made the right choice, however Kate commented that it soesn't matter as the wrong Beth survived.

Mary checks Kate's blood

Mary checks Kate's blood.

The next day, after confronting Nocturna, Kate had her blood checked by Mary at her clinic, telling her it was because che suspected of having a flu, to which Mary suggested it may be psychosomatic as a manifestation of her guilt for choosing Beth over Alice. After the analysis were completed and she found ketamine into Kate's blood, Mary asked her step-sister how it could be possible, to which Kate was quick to replied that she drunk havily during her real estate classes as "no one whant to take them sober", before leaving the clinic and a perplexed Mary behind.

Sophie and Mary at the Hold Up inauguration

Sophie and Mary at the Hold Up inauguration.

That night, she went at the opening party of the Hold Up, noticing Sophie among the crowd and telling her to loosen up and enjoying the party despite the agent's claims she was there to work as for Commander Kane's order; she offered Sophie some vodka and persuaded her into flirting with Elle Scantlin, leaving them alone with an excuse after they started to chat.

Mary is rescued from Andi Ostergaard by Luke

Mary is rescued from Andi Ostergaard by Luke.

After this, however, Mary was approached by Andi Ostergaard a woman who followed her on Instagram and had a crush on her, assuming she was a lesbian too, Andi tried to hit on Mary, who was then "rescued" by Luke; when Andi asked if he was her boyfriend Mary quickly lied saying it was her boyfriend's brother, prompting Andi to leave. Luke remarked that she was very firm into stating that he wasn't her boyfriend, to which she blushed a little and simply complimented his phosphorescent tie. After Luke departed to "assist" Kate, Mary looked at the facts that he seem to work 24/7 for her and had an earphone in a suspicious way.

Batwoman rescues Mary from Nocturna's captivity

Batwoman rescues Mary from Nocturna's captivity.

When Mary left the party and headed back home, she noticed a drunk woman in the corner and tried to help her, however as soon as she approoached the woman Mary was attacked by Nocturna, who took her to the Gotham Cathedral Church and drained her blood aiming at the Desert Rose-cure Alice gave her. The girl was luckily saved by Batwoman, who managed to defeat Nocturna, and unexpectedly Alice, who gave her a blood transfusion.

Mary is rescued from Nocturna

Mary is rescued from Nocturna and taken back to her clinic.

Brought back to her clinic in Bennett Ave., she was visited by her step-sister in the following morning ans stated she felt fine, enjoying the thought that Batwoman bought her some cookies after saving her and explaining that she does some test in her own blood but found anything abnormal no more.

Mary realizes Kate's identity

Mary realizes Kate's identity.

Later, hearing Nocturna used ketamine-injecting teeth on her victims at Vesper Fairchild's talk show, Mary remembered that Sophie herself told her that Batwoman had been bitten by the villainess during their first fight, so she put the pieces together flashing about Luke's behavior and Batwoman's public coming out, which drove her to finally realize about Kate's secret identity.[1]

Mary meets Sophie at the Hold Up

Mary meets Sophie at the Hold Up.

The following morning Mary met Sophie at the Hold Up and, seeing how happy she seemed despite being suspended from her job, asked what was happening, to which the latter made her promise not to tell it to anyone and then revealed that she kissed Batwoman, prompting Mary to ask her if she knew her identity. Sophie replied she didn't and asked the same question, but Mary kept the secret over what she have just discovered.

Mary gives Kate informations on Gotham's influencers

Mary gives Kate information on Gotham's influencers.

Later, Kate visited her asking her how does she felt since the Serial Slasher started targeting influencers like Mia Cortez and Kimberly Wright, thus making her a potential target. Mary stated that it would be hard as most of her followers abandoned her after her mother publicly confessed her crimes, she listed Kate all the influencers' connections and gossip, explaining many had undergone cosmetic surgery by Dr. Campbell and persistently suggesting that she can help her with her knowledge in the field or her medical skills, however Kate declined and told her to simply be careful.

Mary helps Batwoman identify Veronica May

Mary helps Batwoman identify Veronica May.

That night, after having visited Duela's home and found pictures of all of her victims but failing to recognize the next, Kate went back to Mary under the persona of Batwoman. The girl told her that she knew she would have came to her asking help and, after Batwoman asked her how Mary replied that she was observant and intelligent, skills which are too often underestimated. She then correctly recognize the picture of the next victim as Veronica May before changing name and having cosmetic surgery, she also explained where to find her and, after the vigilante stormed off, Mary go take a take away pizza at the Slice of Gotham.

Mary talks with Alice at her clinic

Mary talks with Alice at her clinic.

Coming back at her clinic, Mary found Alice and her Wonderland gang stealing medical supplies, her self-proclaimed "sister" explained that she was collecting her debt since she owed her life to her after the blood transfusion with whom she saved Mary from Nocturna. When Alice asked her if Batwoman hasn't told it to her, Mary was puzzled ans asked if she knew who she is, to which the villainess told her she did, pointing out that if she hadn't told it to Mary too, maybe they weren't as close as she believed.

Mary tells Kate she hopes that one day she would trust her

Mary tells Kate she hopes that one day she would trust her.

The next morning, before the Hold Up opened, Mary met there with Kate and asked her if she was troubled by something, remembering she could talk about everything with her; Kate simply replied that she failed an important business deal, however Mary asked her if she remembered the first time in which she was transported to her clinic, stating that nor even for a single second she thought that Kate would have reported her to the police or told her to stop, because she trusted her, adding that she hoped that one day Kate would trust her in the same way.[15]

Mary and Luke gets informations from Mad Dog

Mary and Luke get information from Mad Dog.

After spreading some flyers that announced a $1,000 reward for anyone with information about a car spotted by some camera near Twin Pines Inn the night of Beth's murder, Mary was approached at her glinic by an individual who introduced himself as Mad Dog, who claimed he have saw said car in a junkyard in the Green; immediately the girl called Luke Fox and asked Mad Dog to tell him the same thing since they believe said car belong to Beth's killer. Despite Mad Dog's thuggish appearance and rough attitude lead Luke not to trust him, Mary believed him and gave him his reward.

Mary and Luke in the junkyard

Mary and Luke in the junkyard.

Then, the two went to the junkyard indicated by the man, finding the car and ultimately proving Mad Dog to be trustworthy; Luke apologized for having doubt Mary's instint and immediately opened the trunk, finding the rifle that killed Beth. Right in that moment, Mary received an incoming call from an unknown number and, after she answer it, she discovered it was Batwoman seeking her help to save a "bad guy" who just stabbed his own throat. THe girl managed to explaing via phone how to close the wound with a stapler and, after Batwoman thanked her she told her that she'd be there for her in anytime. Then, as for a sort of spite towards Luke, who insisted on not using "gadgets" during their investigations so as not to be discovered, when he asked her what Batwoman wanted at the phone, Mary replied that it was a "doctor-vigilante secret".

Mary searches the Batcave's entrance

Mary searches the Batcave's entrance.

Later that evening, back at the Wayne Tower, while Luke tried to track the car's license plate, Mary tried to find the Batcave's entrance by randomly moving books in the library, only to lie that she was interest in said books after Luke asked her what she was doing. Then, when he managed to find when Luke managed to find out who the car was registered to, she was as surprised as him to find out that it was Mabel Cartwright, who died at the same time her son went into hiding.[16]

Personality

"You're the one thing I did right."
Catherine Hamilton-Kane to Mary Hamilton[src]

Mary is very excitable, talkative, friendly, and kind of a social butterfly; she is described as her step-sister Kate Kane's polar opposite[17] and one of Kate trainers dubbed her as "Girl Who Talks Too Much".[3] Despite coming off as a ditzy socialite, Mary is a very kind-hearted individual who will go to any length to help those she loves and the people in need, such as Gotham's underserved communities.[5] Due to the bond she shares with her step-sister Kate, Mary is one of the few individuals who can talk her around,[7] also, even when the two of them argue or when Mary is resentful toward Kate, she was also extremely quick to forgive her.[6]

Because of their differences however, Mary and Kate were never really close, much to Mary's dismay, though she still tried to be friendly and supportive of her step-sister. As a result though, Mary harbored some resentment towards Kate for dismissing and only seeing her as a replacement for the latter's biological sister, Beth. Mary even lashed out at Luke Fox over how Kate still favored a serial killer to her despite all her best efforts to be a good sister[9] and began questioning Kate's love for their family after she refused to talk to Mary since she had "work to do" when their parents were about to divorce.[4]

Mary is also quite empathetic and sensitive; she was horrified after discovering that her mother had manipulated the DNA test on Beth's alleged skull fragments in order to gave Jacob and Kate closure,[9] having a very hard time forgiving Catherine for this deception. Mary felt great sorrow when her mother and adoptive father were about to divorce,[4] and was devastated for being unable to reach and act more sisterly with Kate. Also, despite her animosity towards Alice, after meeting her doppelgänger she realised she was nothing like her and quickly became friends with her.[2]

Mary has often proven to be quite an assertive, inquisitive, and free-spirited girl, not bothering about being politically correct when questioning Sophie Moore's sexuality[7] or discussing her past relationship with Kate and the impact it had on her.[5][10]

After her mother's death Mary matured a lot, taking full charge of her step-father's trial and choosing to shut down all of her social media accounts, also deciding to close her clinic feeling she couldn't be a good doctor as she was unable to save her own mother.[6] However, she eventually managed to overcome her grief, deciding to continue her path and keep both her clinic[14] and her social media accounts[1] open.

Powers and abilities

Former powers

  • Healing blood: After taking the universal cure-all Desert Rose as an antidote to Beth Kane's poison,[11] Mary's blood was able to heal allegedly every illness by transfusion.[14] The properties of the blood seemed to vanish after a while since, analyzing her own blood some months after taking the antidote, Mary found anything abnormal no more.[1]

Abilities

  • High-level intellect/Great business acumen/Expert tactician/Leader: Mary has proven to be a very savvy, intelligent, and cunning individual. She is extremely skilled strategist and planner, having secretly run her own clinic without getting caught through siphoning funds from Gotham University.[3] Mary dealt with various patients on her own, not having any other staff members.[7] She was also very accurate at orchestrating her movements in order to cover her activities and real interest for medicine by posing as an irresponsible party girl,[5] even to her thousands of social media followers. Mary is also a fairly competent business planner, helping Kate Kane to open her gay bar the Hold Up and taking over its design.[4] She also demonstrated an extraordinary memory[15] and is an excellent tactician, taking charge of the organization of her step-father Jacob Kane's trial defense tactics.[6] Mary is so brilliant that after reading Beth Kane's astrophysics notes, she correctly deduced the existence of the multiverse, its collapse, and the birth of Earth-Prime.[2] Mary is regarded by Kate as one of the three most intelligent individuals she knew in Gotham, alongside Luke Fox and Beth.[14] She was the first person to correctly deduce Kate's identity as Batwoman on her own.[1]
    • Expert of deception: Mary is proven to be highly skilled in the art of deception, using acting and improvisation skills to make up several stories in a matter of mere seconds in order to try to pass a checkpoint.[14]
    • Skilled investigator: Mary is very inquisitive and a capable investigator; she extorted information on Alice's plan from Dodgson while he was drugged.[8] She was also quite helpful in investigating the identity of Beth's doppelgänger when she first appeared.[2] Mary was able to figure out that Kate is Batwoman after connecting a series of clues.[1]
    • Medical knowledge: Although Mary is just a medical student and has not yet achieved her M.D., she has a tremendous amount of medical knowledge, enough to operate her own illegal clinic.[3] Her medical skills seems to be even greater and more accurate than that of many paramedics[5] and she was able to perform various surgical feats, such as extracting a car hood out of a man's abdomen and help him recover within a night.[11] Mary also displayed a great knowledge of injuries caused by various types of bullets, able to deduce in less than an hour how to better treat the wounds they made without using specific equipment.[10]
  • Skilled hand-to-hand combatant: Mary is proven to be a skilled hand-to-hand combatant, capable of holding her own in a fight against Alice and eventually overpowering her when the latter was severely weakened by her headaches.[14]
    • Skilled knife-wielder/Knife thrower: Drawing from her knowledge on the human anatomy, Mary has an incredible aim with knives; despite her fear, she was able to stab Dodgson in the leg with remarkable accuracy, debilitating his ability to move.[7]
    • Skilled markswoman: Mary knows how to use a gun thanks to training from her step-family.[7]
  • Network: As a member of the social elite and influencer-in-the-making, Mary has a wide array of contacts.[5] She also has various contacts between the poor Gothamite communities she helped.[7]

Equipment

  • Gun: Mary carries a gun so that she can protect herself after being nearly killed by Dodgson.[7]

Appearances

Batwoman


Gallery

Promotional images

Batwoman

Season 1

Trivia

  • Mary loves to watch puppy videos on YouTube.[7]
  • She's a huge fan of Glam Jams.[5]
  • Mary had over 3.5 million social media followers,[4] but lost most of them following the revelation of her mother and step-father's underhanded activities.[15]
  • Mary's blood type is B-negative.[1]
  • Even though Mary and Beth aren't recognized by law as step-sisters, the two have referred to each other as such.[11]
  • Mary is the first character outside of any team of heroes to have correctly guessed the multiverse's existence on her own, although then dismissing it as a "mere speculation".[2]
    • She is also the first Batwoman main cast character to discover Kate's identity on her own; Beth discovered it by looking into her eyes when Batwoman saved her from drowning while Sophie suspected it until she was convinced of the contrary.
  • It's possible that Mary isn't Jewish like the Kane family as her mother was not and, traditionally, all Jewish descent through the maternal line.

Behind the scenes

  • In the DC Comics, Mary Elizabeth "Bette" Kane is the original Bat-Girl and served as Batwoman's sidekick and Robin's counterpart. Growing up, she would adopt the alias Flamebird (and later Hawkfire) in response to her counterpart's development as Nightwing.
    • Also in the comics, Mary is Kate Kane's younger cousin instead of her step-sister.

References

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