| Ben McKenzie | James Gordon |
| Donal Logue | Harvey Bullock |
| David Mazouz | Bruce Wayne
(credit only) |
| Morena Baccarin | Leslie Thompkins |
| Sean Pertwee | Alfred Pennyworth
(credit only) |
| Robin Lord Taylor | Oswald Cobblepot /
Penguin |
| Erin Richards | Barbara Kean |
| Camren Bicondova | Selina Kyle |
| Cory Michael Smith | Edward Nygma /
The Riddler |
| Jessica Lucas | Tabitha Galavan |
| Chris Chalk | Lucius Fox |
| Drew Powell | Solomon Grundy /
Butch Gilzean |
| Crystal Reed | Sofia Falcone |
| Alexander Siddig | Ra's al Ghul
(credit only) |
| Camila Perez | Firefly |
| Marina Benedict | Cherry |
| Larry Pine | Mayor Burke |
| Christopher Convery | Martin |
| Andrew Sellon | Mr. Penn |
| Sir Brodie | Demonz Boss |
| Twinkle Burke | Bartender |
| Sulekha Ebelle | Officer Patel |
| Adriana Del Orden | Tall Bully |
| Christian Dell'Edera | Short Bully |
| Pierson Salvador | Gruby Child #1 |
| Sami Bray | Gruby Child #2 |
| John Bianco | Head Demon |
| Larry Chan | Bucket Boy |
| Mark C. Fullhardt | Bookie |
| Preston Lopez | GCPD Cop |
| Judy Malka | Gotham Citizen |
| Kevin D. McGee | GCPD Officer |
| Johnny Mirandona | Orphan |
| Frank Modica | GCPD Detective Modica |
| Iphy Murphy | Orphan |
| Kyle Paul | Pit Fighter |
| Ian Michael Stone | Son |
| Kelly P. Williams | Gotham City Police |
| Dante Jayce | The Lowlife Biker
(uncredited) |