| 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
(credit only) |
| Jessica Lucas | Tabitha Galavan |
| Chris Chalk | Lucius Fox |
| Alexander Siddig | Ra's al Ghul
(credit only) |
| Damian Young | Warden Reed |
| Maggie Geha | Ivy Pepper |
| Charlie Tahan | Jonathan Crane /
Scarecrow |
| Michael Maize | Grady |
| Anthony Carrigan | Victor Zsasz |
| Clem Cheung | Apothecary Owner |
| Ken Straus | Desk Sergeant |
| Dwight Waugh | Clown Apparition
(as Dwight 'Scorp' Waugh) |
| Tom Martin | Lawyer |
| Goldwyn Banton | Powerful Man |
| Matthew R. Staley | Lunatic #3 |
| Jared Johnston | Thief #1 |
| Mickey Jaiven | Thief #2 |
| Ramon Nuñez | Thief #3 |
| Preston Lopez | GCPD Cop
(uncredited) |
| Lil Malinich | GCPD Detective
(uncredited) |
| Judy Malka | Gotham Citizen
(uncredited) |
| Kevin D. McGee | GCPD Officer
(uncredited) |
| Amy Novondo | GCPD Officer
(uncredited) |
| Stuart Schnitzer | Core Desk Sergeant
(uncredited) |
| Kelly P. Williams | Gotham City Police
(uncredited) |