| Brenton Thwaites | Dick Grayson / Robin / Nightwing |
| Anna Diop | Koriand'r / Kory Anders / Starfire |
| Teagan Croft | Rachel Roth / Raven |
| Ryan Potter | Garfield 'Gar' Logan / Beast Boy |
| Joshua Orpin | Subject 13 / Conner Kent / Superboy |
| Jay Lycurgo | Tim Drake |
| Franka Potente | May Bennett / Mother Mayhem |
| Joseph Morgan | Sebastian Sanger / Brother Blood |
| Curran Walters | Jason Todd / Robin / Red Hood |
| Rachel Nichols | Angela Roth |
| Minka Kelly | Dawn Granger / Dove |
| Alan Ritchson | Hank Hall / Hawk |
| Seamus Dever | Trigon / Captain Frank Finney |
| James Scallion | Johnny Greyson |
| Tony Nappo | Cab Driver |
| Sean Sullivan | Night Manager |
| Tony Crai | Commission Stable |
| Simon Northwood | Drunk Beating Man |
| Troy Blundell | Gotham Cop #1 |
| Alex Spencer | Gotham Cop #2 |
| Monika Schurmann | Coroner Worker |
| Dale Samms | Police Guard |
| Darryl Flatman | Harrison |
| Duff MacDonald | Cadmus Lab Employee |
| Brooker Muir | Conner Body Double |
| Pastel Supernova | Alley Prostitute |
| Adam Tomlinson | Alley Joe |
| Alain Moussi | Bruce Wayne / Batman (Uncredited) |
| Steve Boyle | Man in Suit |
| Stephannie Hawkins | Screaming Woman |