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For the hitman also known as "Subjekt-11", see David Fuglestad.

Janet Petty, also known under 17 different aliases with Null as her criminal moniker, and designated as Subject 11 by Clifford and Marlize DeVoe, was one of the bus meta-humans. Janet was a criminal who used her gravity-manipulating abilities for robbery before she was incarcerated at S.T.A.R. Labs. Her powers were eventually absorbed by Clifford, killing her.

On Earth-Prime, Janet is still alive.


Original multiverse

Early life

Janet Petty began a life of thievery when she was 13 and had lived as a drifter ever since. She became wanted by the police and once served time in Iron Heights Prison for breaking and entering, trespassing, and burglary. Despite her lifestyle, Janet maintained an active social media profile, posting photos under the online handle "Null".[1]

Gaining meta-human powers

On October 10, 2017, Janet rode Central City Bus 405, which was exposed to dark matter particles resulting from the Flash's return from the Speed Force. She subsequently became a meta-human with the power to manipulate gravity and decided to use these powers to aid her in committing more high-profile thefts.[1]

In the next year, Janet stole the Kahndaq Dynasty family crown when it was being shipped to Central City Museum and the security guards Bob and Jay were away looking for the dolly to lift the crate. She used her powers to make the crate float and when it fell back down and broke she just took the crown.[1]

The next day, she did some business with Earl Cox to sell him gems but when Barry Allen and Detective "Joe West" arrived on the scene she made herself hang on to the wall so that they couldn't see her. When they found the gems and looked up they saw her, leaving her with no other choice but to come down and use her powers to make Barry float leaving Ralph behind so he could help him. Later that day she robbed Central City Jewelry. While she was on the run, she was apprehended by The Flash who cuffed her. She then revealed her escape plan which she called her getaway car, a car with a civilian in it that she made float before The Flash arrived. The reason she called it this way was because either the person in the car dies from falling down or she gets away and while The Flash was saving the man; she got away by using her hairpin clip to free herself from her power-dampening cuffs.[1]

Imprisonment in the pipeline

Later in the evening of the Central City Jewelry robbing, she attacked a fundraiser for Central City Museum where she flew in and then told everyone to put everything that shines, shimmers or sparkles in her bag. She then saw a woman with a sapphire necklace and told her that she loves herself some sapphires. The woman responded that she wasn't going to give it to her but Janet told her that there was no need for the woman to give it to her and that she'll just take it. Janet then made the woman float and took the necklace off her neck just before The Flash could run in to save the woman and the Elongated Man appeared. He pointed out the fact that there were no getaway cars this time. Janet told him that he was right but then she also said that there were a lot of passengers and touched the ground to try and make all the people there float but they got saved in time by The Flash. Janet then snuck up on The Flash by flying behind him, and made him float away and then carried on with stealing jewels. However she ends up being cuffed by the Elongated Man who then saves The Flash by inflating himself to cushion his landing. To keep her safe from DeVoe, she is incarcerated in the pipeline rather than Iron Heights.[1]

After DeVoe broke into S.T.A.R. Labs he took Janet's powers, killing the latter by doing so.[2]

New multiverse

On Earth-Prime, Janet's name is seen amongst Cisco Ramon's "Who's Who?" binder, confirming her survival in the Post-Crisis timeline.[3]

Powers and abilities


"Null's powers affect the density of his cells. It's like you've been filled with helium."
Caitlin Snow[src]
  • Meta-human physiology: After Janet was struck by the dark matter energy after the Flash was released from the Speed Force, her DNA was altered, enabling her to access her newfound powers.[1]
    • Gravity manipulation: Janet has the ability to manipulate the gravity in people and objects through physical contact.[1]
      • Levitation: Janet can make her targets float away uncontrollably just by touching them or the ground they're standing on, this also extends to herself. However, the aforementioned person/object will be susceptible to gravity again once Janet's powers wear off.[1]


  • Expert thief: Due to years of experience, Janet was a highly capable thief, even before she gained her powers.[1]
  • Escape artist: When The Flash apprehended her the first time, Janet managed to unlock her power-dampening cuffs using a hairpin clip after distracting the speedster.[1]



The Flash

Season 4

Season 6

Season 7


Behind the scenes

  • In the DC comics, Null is a meta-human enemy of Hawkman who can manipulate gravity and is male.