| Ben McKenzie | James Gordon |
| Donal Logue | Harvey Bullock |
| David Mazouz | Bruce Wayne |
| Morena Baccarin | Leslie Thompkins |
| Sean Pertwee | Alfred Pennyworth |
| Robin Lord Taylor | Oswald Cobblepot /
Penguin |
| Erin Richards | Barbara Kean
(credit only) |
| Camren Bicondova | Selina Kyle |
| Cory Michael Smith | Edward Nygma /
The Riddler |
| Jessica Lucas | Tabitha Galavan
(credit only) |
| Chris Chalk | Lucius Fox |
| Drew Powell | Solomon Grundy
(credit only) |
| Crystal Reed | Sofia Falcone |
| Alexander Siddig | Ra's al Ghul
(credit only) |
| Peyton List | Ivy Pepper |
| J.W. Cortes | Detective Alvarez
(as JW Cortes) |
| Stu 'Large' Riley | Sampson |
| Krista Braun | Jennifer Luree |
| Pete Simpson | Administrator |
| Stephen James Anthony | Donnie |
| Greg Crowe | Barfly |
| Wesley Volcy | Nurse |
| Remington Jay Perregaux | Handsome Man |
| Jessica Angleskhan | Uni #1 |
| Austin Davis | Chief Bodyguard |
| Jordan Bellow | Uni
(uncredited) |
| Kevin D. McGee | GCPD Officer
(uncredited) |
| Billy Peck | Strike Force
(uncredited) |
| Stuart Schnitzer | Core Desk Sergeant
(uncredited) |
| Kelly P. Williams | Gotham City Police
(uncredited) |