 | Adam Rifkin als Ishbo |
 | Ali Larter als Fardart |
 | Talia Shire als Ishbo's Mother |
 | Hayes MacArthur als Thudnik |
 | Gary Busey als Krutz |
 | Giuseppe Andrews als Zig |
 | Miles Dougal als Zog |
 | Tom Hodges als Bork |
 | Ron Jeremy als Oog |
| Bill Tyree als Old Fool |
 | Carol Alt als Queen Fallopia |
 | David Carradine als Mookoo / Uncle Unky |
| Gregory Robert Dean als Krot |
| Cole McKeel als Ishbo at 12 yrs. |
| Whitney Henriquez als Ugna |
 | Nick Krause als Young Thudnik |
| Courtney Herron als Fardart at 12 yrs. |
 | Caitlin Wehrle als Vixette |
| Kat Smith als Ovaria |
| Jilina Scott als Estrogena |
| Jonna Rose Turnbull als Amazon #1 |
| Raquel C. Rischard als Bull Whip Amazon |
| Kansas Carradine als Pregnant Cavewoman |
 | Derek Southers als Binadrak's Chief |
 | Lin Shaye als Museum Guide |
 | Tom Arnold als Rog (uncredited) |
 | Sasha Grey als Cavegirl (uncredited) |
| Mattt Potter als Zag (uncredited) |
| Deanna Brigidi | Casting |
| Beth Sepko | Casting |
| Scott Billups | Visual Effects Supervisor |
| Adam Clark | Visual Effects |
| Gretchen McNelis | Visual Effects |
| Alysia Raycraft | Costume Designer |
| Alex Wurman | Original Music Composer |
| Christopher Stull | Production Design |
| Martin Apelbaum | Editor |
| Scott Billups | Director of Photography |
| Susan Kirr | Line Producer |
| Tom Schatz | Executive Producer |
| Carolyn Pfeiffer | Producer |
| Brad Wyman | Producer |
| Adam Rifkin | Writer |
| Adam Rifkin | Director |
| Susan Kirr | Unit Production Manager |
| Bobby Bastarache | First Assistant Director |
| Scott R. Meyers | Second Assistant Director |
| Meg Beatty | Additional Second Assistant Director |
| Jeff Schwan | Stunt Coordinator |
| Dick Hancock | Stunts |
| Jim Henry | Stunts |
| Karen Wacker | Production Coordinator |
| B. Sean Fairburn | Camera Operator |
| Jeremy Rodgers | First Assistant Camera |
| David McGill | Steadicam Operator |
| Marcus LaPorte | Leadman |
| Erin McMaster | Art Department Assistant |
| David Utley | Storyboard Artist |
| Mark Lutte | Production Sound Mixer |
| Byron Scott Thomas | Property Master |
| Todd Smiley | Gaffer |
| Robert Janecka | Best Boy Electric |
| Jeffrey W. Petersen | Best Boy Electric |
| Neil Fraser | Key Grip |
| Wes Ahl | Best Boy Grip |
| Alex Certain | Best Boy Grip |
| Amanda Vinopal | Set Costumer |
| Michele K. Short | Set Costumer |
| Ian Taylor Fisher | Costume Assistant |
| Lucky Cardwell | Costume Assistant |
| Catherine Conrad | Hair Department Head |
| Catherine Conrad | Makeup Department Head |
| Morgan Campbell | Makeup & Hair Assistant |
| Melizah Anguiano Wheat | Makeup & Hair Assistant |
| Mark Jarrett | Location Manager |
| Linda Giffin-Citron | Script Supervisor |
| Everett Byrom III | Special Effects Coordinator |
| Sheila Steele | Casting Associate |
| René Pinnell | Associate Editor |
| David Hobizal | Assistant Editor |
| Mattt Potter | Additional Editing |
| Meriwether Tull | Post Production Supervisor |
| Minky Billups | Compositing Lead |
| Mattt Potter | Compositing Artist |
| Jesse Pomeroy | Supervising Sound Editor |
| Paul Stanley | Supervising Sound Editor |
| Steve Tushar | Sound Designer |
| Rod O'Brien | Sound Effects Editor |
| Jackie Johnson | Dialogue Editor |
| Francisco Koch | ADR Mixer |
| Adrian Gauslin | ADR Recordist |
| Michael Kreple | Foley Mixer |
| Hilda Hodges | Foley Artist |
| Andy Hay | Sound Re-Recording Mixer |
| Brett Hinton | Music Editor |
| Roanna Gillespie | Music Supervisor |
| Guy Noria | Choreographer |
