| 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 |
| Camren Bicondova | Selina Kyle |
| Cory Michael Smith | Edward Nygma /
The Riddler |
| Jessica Lucas | Tabitha Galavan |
| Chris Chalk | Lucius Fox |
| Drew Powell | Solomon Grundy |
| Crystal Reed | Sofia Falcone
(credit only) |
| Alexander Siddig | Ra's al Ghul |
| Shiva Kalaiselvan | Lelia |
| Caroline Strong | Susan |
| Kelcy Griffin | Harper |
| Jamal James | Palden |
| Malcolm C. Murray | Strangling Shadow Man |
| Niceto Darcey Festin | Sullim |
| Allison Lahikainen | Narrows Punk
(uncredited) |
| Kevin D. McGee | GCPD Officer
(uncredited) |
| Stuart Schnitzer | Desk Sergeant
(uncredited) |
| Catherine Taormina | Bug Eating Contest Winner
(uncredited) |
| Kelly P. Williams | Gotham City Police
(uncredited) |