 | Jeffery A. Baker als Spartan |
| Brian Danner als King Leonidas |
| Orion Barnes als Themistocles |
| Brian James als Narrator |
| Tanya Donelly als Additional Narration |
| Douglas K. Plamte als Additional Narration |
 | Nathan Hedrick als Dieneces |
| David C. Hernandez als King Xerxes |
| Douglas K. Stuart als Persian Advisor |
| Erin Beinenfeld als Leonidas' Mother |
| Phil Brown als Spartan Ephor |
 | Leena Huff als Dieneces' Mother |
| Liam Jones als Leonidas, age 7 |
| TJ Cencula als Spartan Drill Sargeant |
| Anton Burman als Dieneces, age 7 |
| Gabe Pallo als Spartan, age 15 |
| Nick Cornoch als Spartan Attacker |
| Christy Hauptman als Gorgo |
| JB Gardnier als Athenian Rower |
 | Joshua Bradley als Athenian Rower |
| TJ Cencula als Athenian Rower |
| Rusty Locke als Athenian Rower |
| Nathan Hedrick als Athenian Rower |
| Kristopher Blount als Persian Soldier |
| Nick Cernoch als Persian Soldier |
| Barton Cramer als Persian Soldier |
| John Fairbairn als Persian Soldier |
| Tony Giacomelli als Persian Soldier |
| Chris Hartmann als Persian Soldier |
| David Hernández als Persian Soldier |
| Paul Jacobson als Persian Soldier |
| Kenny Kilfara als Persian Soldier |
| Kristopher Blount als Strangled Helot |
| Robert Greygrass als Cyrus |
 | Matt Smith als Darius |
 | Steve Perry als Persian Spy |
| David Padrusch | Director |
| David Padrusch | Writer |
| Matt Koed | Writer |
| Gene Darnell | Production Design |
| Matt Koed | Producer |
| Sara Padrusch | Writer |
| David Padrusch | Producer |
| David Padrusch | Editor |
| Thomas Danielczik | Director of Photography |
| Machanism Digital | Visual Effects |
| Lucien Harriot | Visual Effects Supervisor |
| Linda Beck | Animation |
| Gabriel Gornell | Animation |
| Mark Palkoski | Art Direction |
| Erin Kilkenny | Visual Effects Designer |
| Nate Mulliken | Visual Effects Director |
| Tarun Charaipotra | Visual Effects |
| Michael Heinz | Visual Effects |
| Fran Krause | Visual Effects |
| Minha Lee | Visual Effects |
| Vincent MacTiernan | Visual Effects |
| JoAnn Patel | Visual Effects |
| Sean Taggart | Visual Effects |
| Sina Taherkhani | Visual Effects |
| Akira Thompson | Visual Effects |
| Daniel Véfez | Visual Effects |
| Pump Audio Inc. | Music |
| Proteus FX | Makeup & Hair |
| Barney Burman | Makeup Supervisor |
| Hugo Villasenor | Makeup Department Head |
| Liz Pisano | Key Makeup Artist |
| Shielu Bharwani | Makeup & Hair |
| Jenn Rose | Makeup Artist |
| Nicole Craig | Makeup Artist |
| Laci Hill | Makeup Artist |
| Frank Ippolito | Makeup Artist |
| Saori Saeki | Makeup Artist |
| Susann Stephanian | Makeup Artist |
| Serena Sudel | Makeup Artist |
| Douglas K. Plamte | Online Editor |
| John Mazyck | Editor |
| Ellen Padrusch | Editor |
| Josh Padrusch | Editor |
| Jay Maurer | Camera Operator |
| Robert Barcelona | Jimmy Jib Operator |
| James Coker | Jimmy Jib Operator |
| Richard Alarian | Gaffer |
| Steve Hughes | Best Boy Grip |
| Patrick Toole | Electrician |
| Michael Piekurowski | Electrician |
| Andrew Robison | Electrician |
| Adam Camacho | Key Grip |
| Nate Wayman | Grip |
| Shaun Sangkarat | Grip |
| Matt Perry | Grip |
| Shawn Meyer | Grip |
| James Atkins | Grip |
| Jordan Confer | Assistant Camera |
| Eugene Thompson | Sound Recordist |
| Gene Darnell | Art Direction |
| David Lee Williams | Sound Recordist |
| Tim Weske | Fight Choreographer |
| Brian Danner | Fight Choreographer |
