| Sam Worthington | Perseus |
| Liam Neeson | Zeus |
| Ralph Fiennes | Hades |
| Edgar Ramirez | Ares |
| Toby Kebbell | Agenor |
| Rosamund Pike | Andromeda |
| Bill Nighy | Hephaestus |
| Danny Huston | Poseidon |
| John Bell | Helius |
| Lily James | Korrina |
| Alejandro Naranjo | Mantius |
| Freddy Drabble | Apollo |
| Kathryn Carpenter | Athena |
| Matt Milne | Elite Guard No. 1 |
| Kett Turton | Elite Guard No. 2 |
| Sinéad Cusack | Clea |
| Spencer Wilding | Minotaur |
| Juan Reyes | Prison Warden |
| Jorge Guimera | Theodulus |
| Asier Macazaga | Theron |
| Daniel Galindo Rojas | Eustachius |
| Lamberto Guerra | Timon |
| George Blagden | Soldier 1 |
| Killian Burke | Soldier 2 |
| Alastair Cording | Villager 1 |
| Caoilfhionn Dunne | Woman 1 |
| Martin Bayfield | Cyclops |
Technical Credits
| Jonathan Liebesman | Director |
| Greg Berlanti | Original Story |
| David Cain | Production Manager |
| Neil Corbould | Special Effects Supervisor |
| Jordan Crockett | Art Director |
| Ben Davis | Cinematographer |
| Kevin de la Noy | Executive Producer |
| Basil Iwanyk | Producer |
| Jon Jashni | Executive Producer |
| Jina Jay | Casting |
| Polly Johnsen | Producer |
| David Leslie Johnson | Original Story,Screenwriter |
| Stuart Kearns | Art Director |
| Paul Kirby | Art Director |
| Louis Leterrier | Executive Producer |
| Dan Mazeau | Original Story,Screenwriter |
| Callum McDougall | Executive Producer |
| Javier Navarrete | Score Composer |
| Terry Needham | Asst. Director |
| Mike Stallion | Art Director |
| Mark Swain | Art Director |
| Jany Temime | Costumes/Costume Designer |
| Tom Brown | Art Director |
| Tom Brown | Art Director |
| Susan Towner | Production Manager |
| Thomas Tull | Executive Producer |
| Martin Walsh | Editor |
| Noriko Watanabe | Makeup |
| Charles Wood | Production Designer |
| Richard D. Zanuck | Producer |
