| Ben McKenzie | James Gordon |
| Donal Logue | Harvey Bullock |
| David Mazouz | Bruce Wayne |
| Zabryna Guevara | Sarah Essen |
| Sean Pertwee | Alfred Pennyworth |
| Robin Lord Taylor | Oswald Cobblepot /
Penguin |
| Erin Richards | Barbara Kean |
| Camren Bicondova | Selina Kyle
(credit only) |
| Cory Michael Smith | Edward Nygma
(credit only) |
| Victoria Cartagena | Renee Montoya |
| Andrew Stewart-Jones | Crispus Allen |
| John Doman | Carmine Falcone |
| Jada Pinkett Smith | Fish Mooney |
| David Zayas | Sal Maroni |
| Richard Kind | Aubrey James |
| Drew Powell | Butch Gilzean |
| Jeremy Davidson | Nikolai |
| Makenzie Leigh | Liza |
| Danny Mastrogiorgio | Frankie Carbone |
| Anthony Carrigan | Victor Zsasz |
| Mekia Cox | Dr. Thawson |
| Christine Hollingsworth | Zsasz Henchwoman #1 |
| Celia Au | Zsasz Henchwoman #2 |
| J.W. Cortes | Detective Alvarez
(as JW Cortes) |
| Eileen Weisinger | Uniformed Female Cop |
| Bob Roseman | Driver |
| Alexis Suarez | Guard |
| Salvatore Inzerillo | Shotgun |
| Alex Corrado | Gabe |
| Adrienne Lovette | Cocktail Waitress |
| Mario D'Leon | Underling |
| Brette Taylor | Martha Wayne |
| Rich Mollo | Henchman
(uncredited) |
| Genoveva Rossi | Seedy Neighborhood Person
(uncredited) |
| Stuart Schnitzer | Core Desk Sergeant
(uncredited) |
| Michael Shatravka | Absentminded Pedestrian
(uncredited) |
| Vladimir Troitsky | Domino Player
(uncredited) |
| Lynne Valley | Nun
(uncredited) |
| Sam Yazbeck | Russian Mobster
(uncredited) |
| Alex Ziwak | Russian Mobster
(uncredited) |