Matthew Modine
Scott Shaw
Bill Sage
John Venable
Gary Ray Stearns
Lloyd Pettigrew
Mark Mench
Standard / Wolf Skull
Tim DeZarn
Nate Roades
Emma Dumont
Milla D'Angelo
Daisy Head
Edith
Jeremy Ambler
Cave Person
Charlotte Vega
Jennifer Shaw
Damian Maffei
Morgan / Deer Skull
David Hutchison
Cullen / Wild Boar Skull
Brian James Fitzpatrick
Osborn Early (as Brian Fitzpatrick)
Valerie Jane Parker
Corrine
Cory Scott Allen
Ed Jenkins
Amy Warner
Aileen
Chris Hahn
Samuel / Elk Head
Daniel R. Hill
Reggie
Brian Searle
Ted Nothum
Dylan McTee
Adam Lucas
Richard Hagerman
Chief Abernathy
Michael Lee Bailey
Foundation Elder (uncredited)
Adain Bradley
Darius Clemons
Jenny McManus
Bar Patron (uncredited)
Chaney Morrow
Hobbs
Bret Aaron Knower
Standard Double
Adrian Favela
Luis Ortiz
Brady Gentry
Jackson
Daphne Matthews
Bar Patron
Jennie Malone
Cave Person
Rhyan Elizabeth Hanavan
Ruthie
Vardaan Arora
Gary Amaan
John E. Brownlee
Foundation Citizen (uncredited)
Mark Angel
Cave Guard (uncredited)