Louis Leterrier Director Sam Worthington Perseus Actor Liam Neeson Zeus Actor Ralph Fiennes Hades Actor Jason Flemyng Calibos, King Acrisius Actor Gemma Arterton Io Actor Alexa Davalos Andromeda Actor Tine Stapelfeldt Danae Actor Mads Mikkelsen Draco Actor Luke Evans Apollo Actor Izabella Miko Athena Actor Liam Cunningham Solon Actor Hans Matheson Ixas Actor Ashraf Barhom Ozal Actor Mouloud Achour Kucuk Actor Ian Whyte Sheikh Sulieman Actor Nicholas Hoult Eusebios Actor Vincent Regan Kepheus Actor Polly Walker Cassiopeia Actor Katherine Loeppky Aged Cassiopeia Actor Luke Treadaway Prokopion Actor Pete Postlethwaite Spyros Actor Elizabeth McGovern Marmara Actor Alexander Siddig Hermes Actor Tamer Hassan Ares Actor Danny Huston Poseidon Actor Travis Beacham Screenwriter Phil Hay Screenwriter Matt Manfredi Screenwriter Basil Iwanyk Producer Kevin De La Noy Producer Richard D. Zanuck Executive Producer Thomas Tull Executive Producer Jon Jashni Executive Producer William Fay Executive Producer Peter Menzies Jr. Cinematographer Martin Laing Production Design Vincent Tabaillon Film Editing Martin Walsh Film Editing Lindy Hemming Costume Design Ramin Djawadi Original Music Lucinda Syson Casting Elaine Grainger Casting Troy Sizemore Supervising Art Direction Gary Freeman Supervising Art Direction Anna Pinnock Set Decoration Ross Bradshaw Art Director James Foster Art Director Patricio M. Farrell Art Director Peter Russell Art Director