 | Sean Maguire als Leonidas |
 | Carmen Electra als Queen Margo |
 | Ken Davitian als Xerxes |
 | Kevin Sorbo als Hauptmann |
 | Diedrich Bader als Traitoro |
 | Method Man als Persian Emissary |
 | Ike Barinholtz als Dane Cook Look-a-Like / Bond Villain / Prophet |
 | Lauren Walsh als Pretty Girl |
 | Tiffany Haddish als Urban Girl |
 | Travis Van Winkle als Sonio |
 | Jareb Dauplaise als Dilio |
 | Phil Morris als Messenger |
 | Jim Piddock als Loyalist / Simon Cowell Look-A-Like |
 | Nicole Parker als Paula Abdul Look-A-Like / Britney Spears Look-A-Like / Ellen DeGeneres Look-A-Like / Hunchback Paris Hilton |
 | Crista Flanagan als Spartan Woman / Ugly Betty Look-A-Like |
 | Hunter Clary als Leo, Jr. |
 | Emily Wilson als Lindsay Lohan Look-A-Like |
 | John Di Domenico als Donald Trump Look-A-Like |
 | Belinda Waymouth als Twiggy Look-A-Like |
 | Jesse Lewis IV als Ms. Jay Look-A-Like |
| Zachary Dylan Smith als 10-Year-Old Leonidas |
| Ryan Fraley als Brad Pitt Look-A-Like |
| Tiffany Claus als Angelina Jolie Look-A-Like |
 | Nick Steele als K-Fed Look-A-Like |
 | Jim Nieb als President Bush Look-A-Like |
 | Dean Cochran als Rocky Balboa / Rambo |
 | Nate Haden als Ryan Seacrest Look-A-Like |
| Tony Yalda als Sanjaya Look-A-Like |
 | Jessica Heap als Spartan Woman's Friend (uncredited) |
 | Tim Connolly als Spartan Soldier (uncredited) |
 | Robin Atkin Downes als Narrator (uncredited) |
 | Martin Klebba als Happy Feet (uncredited) |
| Jason Friedberg | Producer |
| Aaron Seltzer | Producer |
| Peter Safran | Producer |
| Arnon Milchan | Executive Producer |
| Shawn Maurer | Director of Photography |
| William A. Elliott | Production Design |
| Peck Prior | Editor |
| Frank Helmer | Costume Design |
| Mirela Rupic | Assistant Costume Designer |
| W. Mark McNair | Co-Producer |
| Dave Jordan | Music Supervisor |
| Jojo Villanueva | Music Supervisor |
| Eyde Belasco | Casting |
| W. Mark McNair | Unit Production Manager |
| Hal Olofsson | First Assistant Director |
| Greg Guzik | Second Assistant Director |
| Hal Olofsson | Co-Producer |
| Keith Adams | Stunt Coordinator |
| Jen Wall | Production Supervisor |
| William Ladd Skinner | Art Direction |
| Teresa Visinare | Set Decoration |
| Jeff B. Adams Jr. | Set Designer |
| Eva Anna Andry | Set Designer |
| Leslie Milligan | Set Designer |
| Michael Calabrese | Leadman |
| Darren Patnode | On Set Dresser |
| Gus Coto | Set Dresser |
| Owl Martin Dwyer | Set Dresser |
| Jason Perlander | Set Dresser |
| Noel Rideout | Set Dresser |
| Dan Sweetman | Storyboard Artist |
| Doug Hyun | Still Photographer |
| Jeffrey Haupt | Sound Mixer |
| Ruby C. Haupt | Boom Operator |
| Kenny Delbert | Cableman |
| Jody Blose | Script Supervisor |
| Jeremy Launais | Gaffer |
| Darwin Montana Browne | Key Grip |
| Chris Leidholdt | Rigging Grip |
| Danny Brazen | Best Boy Grip |
| Mary Matthews | Costume Supervisor |
| Paul Corricelli | Key Costumer |
| Ann Walters | Key Set Costumer |
| Douglas Noe | Makeup Department Head |
| Ned Neidhardt | Key Makeup Artist |
| Samantha M. Capps | Makeup Artist |
| Gary J. Perticone | Hair Department Head |
| Roxanne Ferguson | Key Hair Stylist |
| Larz Anderson | Special Effects Coordinator |
| Charlie Brown | Location Assistant |
| Kathy Chambless Oliver | Production Coordinator |
| Annie Poirier | Assistant Production Coordinator |
| Jeff Passanante | Construction Coordinator |
| Edward L. Turk | Construction Foreman |
| Ilana McAllistor | Production Accountant |
| Marlene Marks | Payroll Accountant |
| Stacy Walker | Choreographer |
| Jason Friedberg | Director |
| Aaron Seltzer | Director |
| Aaron Seltzer | Writer |
| Jason Friedberg | Writer |
| Christopher Lennertz | Original Music Composer |
| Helena Barrett | Stunt Double |
| Nicole Randall | Stunt Double |
| Sandra Lee Gimpel | Stunts |
| Dane Farwell | Stunt Double |
