David Singh

"Thank you all for coming on such short notice. A few hours ago, the very existence of our city came under the threat of nuclear destruction. But one man rose to meet that challenge. He ran into danger, knowing he would suffer burns all over his body. This man was not thinking about himself. He was thinking about you. The first responders on the front lines. Never have I seen a man with more bravery. Such heroism. It is my great honor to present Central City Police Department's Award of Valor to this city's finest hero. The fastest man alive, The Flash!"

- David Singh

Captain David Singh is the police captain of the Central City Police Department. He is also the husband of Rob.

Encountering metahumans
After a bank was robbed, David Singh was present at the crime scene. He was annoyed at Barry Allen's lateness, but allowed him to proceed with surveying the crime scene.

When Barry returned to work following his coma, Singh requested DNA evidence from him in regards to the Hotchkiss case. Barry promised to bring it right to him. Later that day, he sent Barry, Eddie Thawne and Joe West to the scene of a homicide.

At the scene of a robbery, although there only appeared to be one person, Barry determined that there was in fact six, all with the same shoe size, which he noted to funnily enough be the same as Captain Singh's, prompting him to apologize and reassure that obviously Singh was not a suspect. David and Detective Thawne promptly walked away. Later in the investigation, after the robber, identified as Danton Black, began shooting up a Stagg Industries warehouse, Singh and the rest of the department suited up to backup the two detectives already there.

Singh approached Barry looking for the fiber analysis on the Orloff case. Barry told the captain that he'd finished it and promised to bring it down for him, though Singh was skeptical that Barry would be quick, so he decided to tag along behind, along with Caitlin Snow. He queried who she was and she claimed to be Barry's personal physician. As they reached his lab, Barry handed Captain Singh his findings and Singh surveyed the lab, telling him to clean it up (unbeknownst to him, Barry had used his super speed to put together the case file).

After a failed attempt to rob the Kahndaq Dynasty diamond, Singh was at the scene, where he was told by a guard there were three men involved. When Barry arrived, Barry corrected Singh that there were actually four men. After Barry gave his reasoning, Singh sarcastically thanked Barry for his insight.

Captain Singh is seen eating a burger and fries, telling Joe that his boyfriend (later fiancee) is trying to make him eat healthier and the precinct was the only place he could eat what he wanted. He later allowed an adamant and pushy Eddie Thawne to begin a task force against The Flash.

After the return of Leonard Snart, Captain Singh allowed S.T.A.R. Labs help out the police force, by designing an ice-proof ballistics shield. Cisco Ramon demonstrated the shield using a dummy, but Singh was skeptical that it would work well with real officers. A while later, Singh attended the scene of a fight between Captain Cold and Heat Wave, learning of the legitimate existence of the Flash. He attempted to stop Detective Thawne from helping out The Flash, but was unable to. However, Eddie survived and was rushed away from the fight by The Flash. Before long, the two men were stopped and handcuffed. They were led through the police precinct by Captain Singh, who had to help intervene when Rory accidentally came loose from the police escorting him.

Original Timeline: Mark Mardon returned to get revenge for his brother's death. His outrage on Joe, causes Singh to put protective service on Joe. After Mardon attacks the police station, Singh is hospitalized trying to protect Joe from Mardon's attack, having taken severe physical and mental damage.

Current Timeline: Later, when Barry accidentally went back in time by one day, he captured Mardon before he had a chance to attack the police station, preventing Singh from ever being hurt.

When DA Cecille Horton interrogates Eddie for supposedly shooting two cops, Singh tried to defend him. Despite Barry pointing out the lack of physical evidence tying Eddie to the shooting, Cecille was unmoved, given the cruiser dashcam footage. Singh, along with Barry and Cecille, later watch video footage of the Flash battling Hannibal Bates, who could shapeshift into a multitude of different people, including Eddie. Cecille remarked that the law needed to change to adapt to metahumans. Singh added that they're all lucky the Flash exists to protect them.

In May 2015, Singh and Rob went on their honeymoon.

Battling Zoom
Singh, now having grown a beard, asks Joe about Al Rothstein's death. When asking about Cisco, the latter arrives, comments about Singh's beard and brings "the boot", a technology so the CCPD officers can now stop evil meta-humans. After that, Singh tells Cisco that he wouldn't give him a badge.

When Zoom beat the Flash, he ran to the police station holding the Flash to show what had happened to their "hero". David, along with the entire police station, held Zoom at gunpoint. Singh ordered to open fire though he caught all the bullets with one hand, leaving everyone terrified.

Aiding the Arrow
Months later, Singh got a phone call from an unknown person. The person told him that he some needs information. Singh asked the person who is he, and he said that he is Green Arrow. Singh, who didn't believe him, asked for a proof. Seconds later, the Flash came into his office and put a note that says "HE'S LEGIT", before running away from there. Singh, realized he's really talking to Green Arrow, asked him what he wants to know. Green Arrow asked for information about Tina Boland, a former Police detective of the CCPD. Singh told him that after her partner, Vincent Sobel, got killed, she quit the CCPD and they haven't heard from her since.

Barry's Return
Six months following Barry's mysterious sabbatical, Singh welcomed him back as they were investigating the murder scene of Kurt Weaver. As Cisco joined them, flaunting his CSI card, Singh asked Barry and Joe if their colleague was aware that his "badge" was plastic. Cisco then tapped into the elevator used to kill Weaver and determined that a form of malware seized control of it.

Suspending Barry
One day, Clifford and Marlize complained to Captain Singh that Barry was harassing them, so Singh forced him to apologize. However, the next day, Singh received another complaint from Marlize, who had photographic evidence of Barry breaking into her home. Singh suspended Barry for this and told him to be grateful he wasn't under arrest.

The West-Allen Wedding
Despite Barry's suspension, Singh, along with Rob, attended Barry and Iris' wedding. He sits next to Mick Rory, who he surprisingly doesn't recognize, despite he once arrested him a lone time ago, and he asks Mick if knows him, but Mick shakes his hands and introduces himself. As Cecille sat in the row in front of them, Mick remarked he hate lawyers as much as cops. Rob asked his husband if Mick was a colleague, to which Singh insisted was not the case.

When the wedding was attacked by the Nazis from Earth-X, David and Rob were whisked to by the Flash and Kid Flash, who revealed themselves as Barry Allen and Wally West. Mick later wiped Singh's and everyone else's memories to keep their secret identities safe.

Barry's trial and aftermath
On Christmas, David Singh arrested Barry for supposedly murdering Clifford DeVoe, but David suspected Barry was innocent.

When Joe and Cisco were studying a case of people poisoned by radiation, David apologized to Joe about having to testify against Barry and was willing to let Joe rest.

When he was called to testify, Cecille asked him about Barry and David revealed that Barry told him in his job interview that he was more concerned about helping the victims. David assured he was a good man, but the prosecutor cross-examined Barry's repetitive tardiness and his six months absence and that David was covering for him.

The responsible for the radiation poisoning was found; it was Neil Borman. He did not do it maliciously, but unwittingly. David and other policemen were trying to stop him, but it made Neil more scared and increased the level of radiation he was already uncontrollably producing. As The Flash, Barry took David and other cops further back from the scene for their safety. He alongside Cisco managed to stop his radiation for a while and sent him to Tracy Brand's laboratory.

While Barry was being sentenced, David Singh was celebrating The Flash's heroic act.

Despite the fact that Barry has been cleared of all charges of murder, David had been ordered by Van Buren, the interim mayor of Central City to suspend Barry from CCPD indefinitely (albeit he does so reluctantly) until Barry could unambiguously prove his innocence on the basis that most people are doubtful that it was Clifford who was in the courtroom that day, due to the existence of meta-humans. David is the only one of his co-workers who believed in Barry's innocence, and even offered to fight his suspension on his behalf, but the latter politely declined, since he did not want David to get into trouble because of him.

The Enlightenment
David called Barry, and left a message that Buren had allowed him to get his job back due to Iris's blog posts about DeVoe's activity as the Thinker. However, this phone call got cut off, along with all of the other power in Central City, as DeVoe's Enlightenment began.

When DeVoe intended to send the satellite to Central City, Singh was helping the people to safety. After the Flash with help of another speedster destroyed the satellite, Singh applauded his heroism alongside Cisco, Ralph and the citizens.

Welcoming Barry back
David received Barry back to the CCPD. David told Barry that during his suspension, there were many files pending for revision.

When they investigate a robbery and having a conversation, Nora assured Captain Singh that everything would be safe as long as he is in command. Barry mentioned to her he was Captain Singh, and David and Nora shook hands while Nora told him she read a lot about him. She claimed to to be a CSI intern hired by Barry to help him with cases pending during his suspension. Barry confirmed it, and David accepted it but asked Barry to officialize it later. Then Iris met him to speak about Gridlock, and David agreed to do only for this time, with the condition that his testimony be off the record and only because she is Barry's wife. Then David reveals Iris the truck where Gridlock was taken in custody in was assaulted, the policemen there were injured and Gridlock was murdered.

Personality
David takes his job as a police captain very seriously, he seems to believe Barry Allen to be sloppy and perpetually tardy, completely unaware of the reason why he is always late. During a case, he is typically very harsh and doesn't tolerate much of Barry's tardiness or light humor. In spite of this, he cares very much for those under him in the Central City Police Department, going out of his way to assist them in any way if they get into a pinch, diverting the resources at his disposal if he must, as seen when he strongly recommended Joe West to stay in close protection when Joe was being targeted by a meta-human and later took a hit (from a lightning bolt) for him when Mark Mardon came to kill Joe, and before that, he even suggested Joe to have his daughter, Iris West, contact the Flash for assistance; he also pleaded with the district attorney when Eddie Thawne was accused of shooting two police officers. It is revealed by David's boyfriend, Rob, that he actually respects Barry and speaks quite highly of him, also stating that David "is all bark. A really loud bark".

Despite his serious demeanor, David does have a romantic side. He mentions that his boyfriend is trying to encourage him to eat better. When he mentions that they are now engaged, it suggests he is more than capable of maintaining a relationship as well as handling a case. After being married for over six months, David has been displayed to have matured somewhat, displaying a less abrasive side to others. He has also come to express extreme trust in the Flash's heroism, intentions, and deeply respects the "Scarlet Speedster".

David's tough exterior seems to function as a coping mechanism given his extremely stressful line of work and his responsibilities as a Captain. During Hannibal Bates's crime spree he talks to Barry who is concerned for the Captain's stress levels in the tone of a peer and equal, giving Barry a look into the man behind the badge, improving their personal and working relationship significantly, as evidenced by their lack of conflict beyond that point.

Despite being a police captain, David can sometimes be quite gullible; for example, after Clifford DeVoe, who appeared to be kind-hearted individual, claimed that Barry was harassing him for no apparent reason (in truth, the latter was only conducting the necessary investigation) David (wrongfully/unfairly) suspended Barry from the CCPD without hearing his side of the story first.

After Barry was framed by Clifford and Marlize DeVoe for murder, David (along with Joe West) was the only one of his co-workers who believed in his innocence, due to him working alongside Barry for years, as he knows the latter well enough to know, that he would never commit the crimes he was being accused of, or possibly knowing he is the Flash. David was also happy when he was allowed to end his suspension.

The Flash
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Season 5
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Behind the scenes

 * In the DC comics, David Singh is the director of the crime lab at Central City Police Department, who takes Barry Allen into his lab on Captain Frye's orders.
 * In the "New 52" reboot of The Flash comics, he is romantically tied to Hartley Rathaway.