Tweaker is a minor villain at the beginning of the third season of Gotham. Having previously been an inmate at Arkham Asylum and a test subject for Professor Strange's experiments, he joined Fish Mooney after escaping into Gotham.


Together with Fish Mooney and another of Fish's henchmen, Marv, Tweaker enters a secret research facility where Fish hopes to be cured of her sickness. When James Gordon arrives and attempts to arrest Fish, Tweaker attacks Gordon, viciously beating at him. After buying Fish enough time to escape, the man flees as well - jumping off a balcony, surviving the fall due to his wing-like cape.

The man is encountered again after he and fellow monsters Sid and Nancy are sent to kidnap Ethel Peabody. Although Sid and Nancy can successfully kidnap Peabody, Tweaker is forced to fight Gordon once more. Again, he attempts to escape, this time by jumping out of the window. However, Gordon catches him by the ankle, causing the man to turn his cape into bat wings, attempting to wrench free. Gordon doesn't let go and pulls Tweaker back through the window, arresting him once he is inside. The whole incident is photographed by reporter Valerie Vale, who sells the photos of Tweaker to the media.


  • Many fans take Tweaker as the prototype version of Man-Bat.


           Gotham Villains

514A | Barbara Kean | Bridgit Pike | Butch Gilzean | Carmine Falcone | Edward Nygma | Fish Mooney | Hugo Strange | Ivy Pepper | Jerome Valeska | Jervis Tetch | Jonathan Crane | Kathryn Monroe | Mario Calvi | Nathaniel Barnes | Ms. Peabody | Oswald Cobblepot | Professor Pyg | Leslie Thompkins | Ra's al Ghul | Salvatore Maroni | Sensei | Sofia Falcone | Tabitha Galavan | Theo Galavan | The Ogre | Victor Fries | Victor Zsasz

Aaron Helzinger | Anubis and the Hunter | Arnold Dobkins | Arnold Flass | Aubrey James | Basil Karlo | Billy Boy | Carlson Grey | Clyde Destro | Davis Lamond | Dick Lovecraft | Dollmaker | Dorothy Duncan | Dr. Marks | Dwight Pollard | Eduardo Flamingo | Electrocutioner | Father Creel | Frankie Carbone | Gabe | Gerald Crane | Gillian Loeb | Grace van Dahl | Gus Floyd | The Lady | Larissa Diaz | Marv | Mario Pepper | "Matches" Malone | Merton | Nancy | Patti and Doug | Reed | Reginald Payne | Richard Gladwell | Richard Sionis | Ridgeback Monster | Robert Greenwood | Sid | Sid Bunderslaw | Stan Potolsky | Talon | Tom Dougherty | Trope | Tweaker | Tweed-Brothers | Zaardon

Court of Owls | Gotham City Police Department | Jerome Copycats | Order of St. Dumas | Penguins | Red Hood Gang | Maniax | Monsters | Wayne Enterprises