- Adam Rifkin
- Ishbo
- Ali Larter
- Fardart
- Hayes MacArthur
- Thudnik
- David Carradine
- Mookoo / Uncle Unky
- Talia Shire
- Ishbo's Mother
- Carol Alt
- Queen Fallopia
- Gary Busey
- Krutz
- Miles Dougal
- Zog
- Giuseppe Andrews
- Zig
- Bill Tyree
- Old Fool
- Ron Jeremy
- Oog
- Tom Hodges
- Bork
- Gregory Robert Dean
- Krot
- Cole McKeel
- Ishbo At 12 Yrs
- Whitney Henriquez
- Ugna
- Nick Krause
- Young Thudnik
- Courtney Herron
- Fardart at 12 years
- Caitlin Wehrle
- Vixette
- Kat Smith
- Ovaria
- Jilina Scott
- Estrogena
- Jonna Rose Turnbull
- Amazon #1
- Raquel C. Rischard
- Bull Whip Amazon
- Kansas Carradine
- Pregnant Cavewoman
- Derek Southers
- Binadrak's Chief
- Lin Shaye
- Museum Guide
- Rebeca Linares
- Amazon woman
- Max Carradine
- Cave Boy
- Michael Hirano Culross
- Caveman
- Crystal Damon
- Cheerleader
- Mac N Dixon
- Caveman
- Steve Halldorson
- Enthusiastic Protester
- Oliver Hibbs Wyman
- Cave Boy
- Amanda Rivas
- Cavegirl
- Gary Teague
- Caveman
- Tom Arnold
- Rog
- Joe Azzato
- Caveman
- Johnny Bartee
- Caveman
- Ian Christopher Blake
- Museum Kid
- Sarah Grant Brendecke
- Urgna
- Emerson Brooks
- Fardart's Father
- Alessandra Burenin
- Amazon Warrior
- Jorie Burgos
- Amazon / Cavewoman (uncredited)
- Victoria Chalaya
- Amazonian Warrior
- Miranda Charney
- Student at Museum
- Jack Cruz
- Tribe Warrior
- Mallory Culbert
- Cavewoman
- Kelsey Felder
- Student at Museum
- Kerry Finlayson
- Amazon Woman
- Maggie Gallant
- Museum Guide
- Alli Gillespie
- Cavegirl
- Camie Gillespie
- Cavegirl
- Mary Grace
- Amazon / Cavewoman (uncredited)
- Sasha Grey
- Cavegirl
- Ramzi Haddad
- Student
- Rana Haddad
- Museum Visitor
- Taylor Hardick
- Kid in Museum
- Jason Harper
- Caveman
- Derek Chase Hickey
- Young Thudnik's Friend
- Sara Hickman
- (uncredited)
- Charlie Hurtin
- Caveman
- Samantha Inoue Harte
- Cavegirl
- Ayla Judson
- Cavegirl
- Landon Kash
- Caveman
- Emily Kaye
- Amazon
- Jason Konopisos-Alvarez
- Caveman
- Kate Krause
- Cavegirl
- Olivia Lee
- Ulwin
- Jacklyn Lick
- Amazon Woman
- Andrea Lowell
- Old Fool's Girlfriend
- Taylor Maddux
- Archeologist
- Travis Moseley
- Student at Museum
- Rachel Ann Mullins
- Cavewoman
- Jen Ortega
- Cavewoman
- Darryl K. Phipps
- Caveman
- Mattt Potter
- Zag
- Steve Powers
- Caveman Warrior
- Andrew Rice
- Student at Museum
- Emmy Robbin
- Amazon #2
- R.J. Schines
- Museum Boy
- Scarlett Schines
- Museum Visitor
- Kimberly Ann Shafer
- Fire Breathing Amazon
- Austin Tate
- Caveboy
- Angela Ware
- Cavegirl
- John Wirt
- Caveman
