 | Sam Worthington als Perseus |
 | Gemma Arterton als Io |
 | Mads Mikkelsen als Draco |
 | Alexa Davalos als Andromeda |
 | Jason Flemyng als Calibos / Acrisius |
 | Ralph Fiennes als Hades |
 | Liam Neeson als Zeus |
 | Pete Postlethwaite als Spyros |
 | Polly Walker als Cassiopeia |
 | Ashraf Barhom als Ozal |
 | Elizabeth McGovern als Marmara |
 | Nicholas Hoult als Eusebios |
 | Liam Cunningham als Solon |
 | Hans Matheson als Ixas |
 | Vincent Regan als Kepheus |
 | Alexander Siddig als Hermes |
 | Luke Treadaway als Prokopion |
 | Mouloud Achour als Kucuk |
 | Tine Stapelfeldt als Danae |
 | Luke Evans als Apollo |
 | Izabella Miko als Athena |
 | Ian Whyte als Sheikh Sulieman |
 | Katherine Loeppky als Aged Cassiopeia |
 | Sinead Michael als Tekla |
 | Ross Mullan als Pemphredo |
| Robin Berry als Enyo |
 | Graham Hughes als Deino |
 | Martin McCann als Phaedrus |
 | Rory McCann als Bello |
 | Kaya Scodelario als Peshet |
 | Tamer Hassan als Ares |
 | Danny Huston als Poseidon |
 | William Houston als Ammon |
 | Jamie Sives als Captain |
 | Phil McKee als Harbourmaster |
 | Geoffrey Beevers als Noble (Basilica) |
| Michael Grady-Hall als Citizen (Argos) |
 | Laura Kachergus als Citizen (Argos) |
 | Adrian Bouchet als Soldier (Zeus Statue) |
 | David Kennedy als Kepheus' General |
 | Nina Young als Hera |
 | Jane March als Hestia |
 | Nathalie Cox als Artemis |
 | Agyness Deyn als Aphrodite |
 | Natalia Vodianova als Medusa |
| Charlotte Comer als Demeter |
 | Louis Leterrier als Kraken (uncredited) |
 | Katrina Vasilieva als Exotic Dancer (uncredited) |
| Lucinda Syson | Casting |
| Anna Pinnock | Set Decoration |
| Richard D. Zanuck | Executive Producer |
| Liz Dann | Costumer |
| Lynn Harris | Executive Producer |
| Neil Corbould | Special Effects |
| Troy Sizemore | Supervising Art Director |
| Daniel Mason | Modeling |
| Martin Laing | Production Design |
| Martin Walsh | Editor |
| Lindy Hemming | Costume Design |
| James Mather | Supervising Sound Editor |
| Terry Needham | First Assistant Director |
| Peter Burgis | Foley |
| Fergus Clegg | Assistant Set Decoration |
| Sam Conway | Special Effects Technician |
| William Mesa | Visual Effects Supervisor |
| Peter Menzies Jr. | Director of Photography |
| Louis Leterrier | Director |
| Paul Jennings | Stunt Coordinator |
| Jo Grover | Makeup Artist |
| David Freeman | Editor |
| Veronica McAleer | Makeup & Hair |
| Ramin Djawadi | Music |
| Thomas Tull | Executive Producer |
| William Fay | Executive Producer |
| Elaine Grainger | Casting |
| Phil Hay | Screenplay |
| Matt Manfredi | Screenplay |
| Vincent Tabaillon | Editor |
| Bryce Brecheisen | Stereoscopic Coordinator |
| Richard Baker | Compositing Supervisor |
| Basil Iwanyk | Producer |
| Jon Jashni | Executive Producer |
| Ian Differ | VFX Editor |
| Noriko Watanabe | Makeup & Hair |
| Kevin De La Noy | Producer |
| Travis Beacham | Screenplay |
| Karl McMillan | Producer |
| James Foster | Art Direction |
| Nick Davis | Visual Effects Supervisor |
| Dean Clegg | Set Designer |
| Kyle Cooper | Conceptual Design |
| George Richmond | Camera Operator |
| George Richmond | Steadicam Operator |
| Robert Palmer | First Assistant Camera |
| Dale Alexander Carnegie | Executive Producer |
| Lincoln Kupchak | VFX Editor |
| Holly Waddington | Other |
| Tim Wooster | Camera Operator |
| Scott Patton | Concept Artist |
| Guy Speranza | Assistant Costume Designer |
| Nikki Penny | Visual Effects Producer |
| Patricio M. Farrell | Art Direction |
| Will Humphris | Second Assistant "A" Camera |
| Dan Grace | Costume Supervisor |
| Graham Churchyard | Assistant Costume Designer |
| Rose Wicksteed | Casting Assistant |
| Peter James | Standby Art Director |
| Lizzie Lawson | Makeup & Hair |
| Edward Griffiths | Props |
| Lupt Utama | Costumer |
| Bjorn Ole Schroeder | ADR & Dubbing |
| Lawrie Ayres | Greensman |
| Andrew Bennett | Set Designer |
| Jennifer Bowes | Art Department Coordinator |
| Darren Fitzsimons | Sculptor |
| Emma Hanson | Sculptor |
| Roger Holden | Greensman |
| Will Holden | Greensman |
| Meike Maher | Construction Coordinator |
| Jonathan Moore | Sculptor |
| Francis Poirier | Sculptor |
| Terry Royce | Greensman |
| Keith Stevenson | Greensman |
| Tom Whitehead | Set Designer |
| Jamie Wilkinson | Property Master |
| Michael Fentum | Sound Effects Editor |
| Dominic Gibbs | Sound Designer |
| Jed Loughran | Sound Effects Editor |
| David Brighton | Special Effects |
| Michael Dawson | Special Effects |
| Dadi Einarsson | Visual Effects Supervisor |
| Hugh Macdonald | Visual Effects Supervisor |
| Emma Phillips | Visual Effects Producer |
| Chris Benstead | Music Editor |
| Peter Oso Snell | Music Editor |
| Steven Brigden | Transportation Captain |
| Gerry Turner | Transportation Coordinator |
| Wyn Vaughan-Humphreys | Costume Standby |
| Robert Edwards | ADR Mixer |
| Melanie Byrne | Visual Effects Production Manager |
| Victor James Martinez | Concept Artist |
| Hannah Edwards | Makeup & Hair |
| Sandra Phillips | Set Designer |
| Ilona Blyth | VFX Editor |
| Gary Brozenich | Visual Effects Supervisor |
| Lisa Vick | Script Supervisor |
| Jay Maidment | Still Photographer |
| Helen Xenopoulos | Assistant Art Director |
| Ken Dailey | Visual Effects Producer |
| Emily Wallin | Visual Effects Producer |
| Simon Stanley-Clamp | Visual Effects Supervisor |
| Mark Taylor | Sound Re-Recording Mixer |
| Michael Mulholland | CG Supervisor |
| Alice Hobden | Second Assistant "B" Camera |
| Martin Kenzie | Second Unit Director of Photography |
| Martin Kenzie | Second Unit Director |
| Andy Evans | Construction Manager |
| Andy Stevens | VFX Editor |
| Hans Bjerno | Aerial Director of Photography |
| Francesca Jaynes | Choreographer |
| Erik Nordby | Digital Effects Supervisor |
| Stuart Howell | Camera Operator |
| Lars Vinther | VFX Editor |
| Jonathan 'Chunky' Richmond | First Assistant "A" Camera |
| David Sinfield | Gaffer |
| Ben Wilson | Camera Operator |
| Martin Chamney | Pre-Visualization Supervisor |
| Nicholas Roche-Gordon | Key Costumer |
| Todd Kleparski | Digital Intermediate |
| Chas Bain | Camera Operator |
| Jamie Lengyel | Location Manager |
| Joe Hopker | Makeup & Hair |
| Sarah Monzani | Makeup & Hair |
| Maralyn Sherman | Makeup & Hair |
| Kate Benton | Makeup Artist |
| Zoe Brown | Makeup Artist |
| Terry Jarvis | Wigmaker |
| Ray Marston | Wigmaker |
| Peter Owen | Wigmaker |
| Sarah Weatherburn | Wigmaker |
| Angus More Gordon | Production Manager |
| Lil Heyman | Production Supervisor |
| Charles Leatherland | Assistant Art Director |
| Greg Winter | Scenic Artist |
| Chris Sturmer | Dolby Consultant |
| Darren Robinson | Animatronic and Prosthetic Effects |
| John Nolan | Animatronic and Prosthetic Effects |
| Rob Harvey | Visual Effects Supervisor |
| Kumar Ramalingam | VFX Editor |
| Liz Roberts | Visual Effects Producer |
| Richard Pring | VFX Editor |
| Stephane Paris | CG Supervisor |
| Nic Hatch | Visual Effects Producer |
| Quentin Miles | Animation Supervisor |
| Robert Binnall | Camera Operator |
| Warren Evans | Rigging Gaffer |
| Karen Beale | Set Costumer |
| Fiona McCann | Set Costumer |
| Maurizio Torti | Set Costumer |
| Gregg Schaublin | Digital Intermediate |
| Matthew Tucker | First Assistant Editor |
| Jane Winkles | First Assistant Editor |
| Phil Hounam | Location Manager |
| Mira Husseini | Unit Publicist |
| Geoff Dibben | Location Manager |
| Terry Blyther | Location Manager |
| Luis F. Pazos | Visual Effects Coordinator |
| Karin Eunson-Ross | Visual Effects Coordinator |
| Jayson King | VFX Artist |
| Andre Gilbert | Special Effects Makeup Artist |
| Brendan Handscombe | Key Costumer |
| Rachael Speke | Makeup & Hair |
| Charmaine Fuller | Makeup Artist |
| Zoe Clare Brown | Makeup Artist |
| Jacqueline Bhavnani | Makeup Artist |
| Jessica Brooks | Makeup Artist |
| Christof Roche-Gordon | Costume Assistant |
| Josh Weston | Special Effects Makeup Artist |
| Steven Hall | Visual Effects Camera |
| Patric Roos | CG Supervisor |
| Peng Ke | Visual Effects |
| Eddie Yang | Character Designer |
| Sian Wilson | Makeup Artist |
| Steven Messing | Concept Artist |
| John Kay | 3D Animator |
| Audrey Doyle | Prosthetic Makeup Artist |
| Max Solomon | Animation Supervisor |
| Richard Graham | Visual Effects Production Manager |
| Jenny Shircore | Hair Designer |
| Jenny Shircore | Makeup Designer |
| Peter Lee | Props |
| Christina Graham | Visual Effects Coordinator |
| Bill Thomas | Props |
| Sheena Wichary | Costume Coordinator |
| Matt Windon | First Assistant "C" Camera |
| Greg Fisher | Animation Supervisor |
| Aisling Nairn | Prosthetic Makeup Artist |
| Patrick Murphy | Stereoscopic Technical Director |
| Arushi Govil | VFX Artist |
| Andrew Simonin | Hairdresser |
| Miles Proudfoot | First Assistant Camera |
| Marc Pilcher | Makeup & Hair |
| Charlie Herranz | Second Assistant "C" Camera |
| Sebastian Barraclough | Second Assistant "A" Camera |
| James Doh | Storyboard Artist |
| Darrin Denlinger | Storyboard Artist |
| Huseyin Caner | Visual Effects Supervisor |
| Julian Caldow | Conceptual Illustrator |
| Jamie Mills | Lighting Technician |
| David Appleby | Key Grip |
| Liz Michie | Makeup Artist |
| Arnaud Valette | Concept Artist |
| Jo McLaren | Stunts |
| Valter Casotto | Prosthetic Makeup Artist |
| Martyn Welland | Electrician |
| Conor O'Sullivan | Prosthetic Supervisor |
| Anna V. James | 3D Coordinator |
| Robb Denovan | Lead Animator |
| Christian Irles | Compositing Supervisor |
| Julie Kendrick | Makeup Artist |
| Annie McEwan | Makeup Artist |
| David Cozens | First Assistant "A" Camera |
| Frédéric North | Pilot |
| Molly Pabian | Visual Effects Coordinator |
| Kyle McCulloch | Compositing Supervisor |
| William Booker | Second Unit First Assistant Director |
| Sarah Kelly | Makeup & Hair |
| Sophia Knight | Makeup & Hair |
| Tim Browning | Prop Designer |
| Andrew Guyett | Painter |
| Wolfgang Osterholzer | Standby Carpenter |
| Louis Elman | ADR Voice Casting |
| Gary Hutchings | Key Grip |
| Paul Boyce | Makeup Artist |
| Jon Henry Gordon | Makeup Artist |
| Arslan Elver | Lead Animator |
| Bradley Woodbridge | Standby Painter |
| Simon Muir | Grip |
| Laura Morse | Makeup & Hair |
| Neil Munro | Lighting Technician |
| Phil Murray | Grip |
| Gary Romaine | Grip |
| Michael Stevenson | Second Assistant Director |
| Abner Marín | VFX Artist |
| Jim Crowther | Best Boy Grip |
| Katie Lee | Assistant Makeup Artist |
| Abigail Barbier | ADR Voice Casting |
| Lily Mathiszig-Lee | Costume Assistant |
| Mitch Deoudes | Visual Effects |
| Peta Bayley | Senior Animator |
| Thomas Biller | Visual Effects Technical Director |
| Chris Bain | First Assistant "B" Camera |
| Charlotte Malynn | Art Department Assistant |
| James D. Kelly | Visual Effects Camera |
| Valentina Visintin | Prosthetic Makeup Artist |
| Clark Harding | Roto Supervisor |
| Christian Quickle | Visual Effects Coordinator |
| Duncan Burbidge | Visual Effects Producer |
| Julianna Kolakis | Character Designer |
| Cara Tallulha Davies | Visual Effects Coordinator |
| Katharina Hofmann | Casting Director |
| Becca Donohoe | Visual Effects Coordinator |
| Lois McIntosh | Makeup & Hair |
| Robert Trenton | Prosthetic Makeup Artist |
| Simon Wilkinson | Visual Effects |
| Billy Gamble | Best Boy Electric |
| Grahame Andrew | VFX Artist |
| Caprice Ann Ridgeway | Visual Effects Coordinator |
| Hannah Eccleston | Prosthetic Makeup Artist |
| Mark 'Rocky' Evans | Gaffer |
| Pawl Fulker | Pre-Visualization Supervisor |
| Tara Ilsley | Art Department Assistant |
| James Purdy | Visual Effects Coordinator |
| Natalie Lovatt | Visual Effects Coordinator |
| Göran Lundström | Prosthetics Sculptor |
| Paul Hearn | Props |
| Will Morris | Camera Trainee |
| Max Glickman | Second Assistant "B" Camera |
| Lubos Gerardo Surzin | Matte Painter |
| Amit Desai | Visual Effects Technical Director |
| Mario Spanna | Libra Head Technician |
| John Maher | Construction Manager |
| Vincent Aupetit | CG Animator |
| Andrew Fensom | Rotoscoping Artist |
| Mark Funnell | Electrician |
| Helen Judd | Visual Effects Production Manager |
| Joshua Herrig | VFX Lighting Artist |
| Aaron Sims | Character Designer |
| Justine Warhurst | Costume Assistant |
| Mathieu Vig | Lead Animator |
| Nihal Friedel | VFX Lighting Artist |
| David Ned Kelly | Supervising Carpenter |
| Sam Chapman | Props |
| Chris Clarke | Second Assistant "A" Camera |
| Esme Long | Visual Effects Coordinator |
| Beisan Elias | Camera Trainee |
| Tash Gamper | Second Assistant Camera |
| Jack Hawkes | Visual Effects Production Assistant |
| Oliver Fergusson-Taylor | Visual Effects Technical Director |
| Matt Codd | Concept Artist |
| Jamie Harvey | Wardrobe Assistant |
| Peter Clayton | Lead Animator |
| Moti Biran | VFX Artist |
| Alvin Yap | Visual Effects Technical Director |
| Jakob Kousholt | Modeling |
| Matt Beale | Modeling |
| Matthew Sabourin | Visual Effects Coordinator |
| Bethan Jones | Draughtsman |
| Emma Bevan | Costume Assistant |
| Jigesh Gajjar | Matchmove Supervisor |
| Abigail Mendoza | Visual Effects Production Assistant |
| Michael Parkin | Props |
| Sevendalino Khay | Matte Painter |
| Cheryl Mitchell | Makeup Artist |
| Tasha Back | Second Assistant "C" Camera |
| Tim Dean | Libra Head Technician |
| Somesh Ghosh | Visual Effects Compositor |
| Uday Bhaskar Bandaru | Visual Effects |
| Jim Charmatz | Concept Artist |
| John Fox | Assistant Property Master |
| Adrian Simmons | Costume Assistant |
| Jill Avery | Costume Assistant |
| Andrew Schwartz | Stereoscopic Technical Director |
| Gauri Patil | Visual Effects |
| Michelle Martin | Visual Effects Producer |
| Ben Johnson | Dressing Prop |
| Dominic Aronin | Electrician |
| Charlie Euston | Electrician |
| Charlotte Sadler | Costume Assistant |
| Csaba László Eröss | Visual Effects |
| Chris McClintock | Stereoscopic Coordinator |
| Kasia Chojnowska | Costumer |
| Jake Wells | Props |
| Simon Thorpe | Grip |
| Ileana Stravoskiadi | Modeling |
| Sharon Colley | Makeup Artist |
| Oleksandr Panaskevych | Visual Effects Technical Director |
| Louise Young | Makeup Artist |
| Widaad Williams | Costumer |
| Khandu Bidkar | Rotoscoping Artist |
| Louise Luxton | Hairdresser |
| Colin Shulver | Special Effects Makeup Artist |
| Tristan Mathews | Visual Effects Coordinator |
| Gilly Popham | Makeup & Hair |
| Malgorzata Krystyna Kloda | Special Effects Makeup Artist |
| Maxine Heywood | Costumer |
| Simon Brindle | Principal Costumer |
| Lewis Peake | Art Department Assistant |
| Jackie Yau | Assistant Set Decoration |
| Iraide Álvarez | Construction Coordinator |
| John Kirsop | Construction Manager |
| Toby Wagner | Dressing Prop |
| Wesley Harland | Prop Maker |
| Jonathan Norman | Props |
| Alexis Santos | Props |
| Karl Ayton | Set Dresser |
| Josh Crockett | Set Dresser |
| Mitchell Crockett | Set Dresser |
| Jacqueline Crockett | Set Dresser |
| James Crockett | Set Dresser |
| Lee Gooch | Standby Carpenter |
| Colin Townsend | Lighting Technician |
| Jason Bulley | Underwater Camera |
| James Stone | Creature Design |
| Paul Murphy | Creature Design |
| Sally Wilson | VFX Lighting Artist |
| Joseph McLamb | Matte Painter |
| Adam Dewhirst | Modeling |
| Fabien Yorgandjian | Modeling |
| Gaurav Mishra | Rotoscoping Artist |
| Navin Chitta | Rotoscoping Artist |
| Bhushan Salgaonkar | Rotoscoping Artist |
| Perry Hyunwoo Sohn | Rotoscoping Artist |
| Diego Prilusky | VFX Artist |
| Haavard Ness | VFX Artist |
| Sajith Sethumadhavan | VFX Artist |
| Richard Deeb | Visual Effects Coordinator |
| Jerome Berglund | Visual Effects Production Assistant |
| Ole Olsen Bolsønes | Visual Effects Technical Director |
| William Alexander | Visual Effects Technical Director |
| Coen Klosters | Visual Effects Technical Director |
| Rupert Thorpe | Visual Effects Technical Director |
| Benjamin Loch | Visual Effects Technical Director |
| Kevin Campbell | Visual Effects |
| Theivendran Kabelan | Visual Effects |
| Justo Dieguez | Stunts |
| John Hughes | Sound |
