Diretor/a
Bob Lally
DIRETOR/A
Dennis Steinmetz
Gordon Wiles
Joseph L. Scanlan
Rick Bennewitz
Elenco (na ordem dos créditos)
Wesley Eure
Will Marshall
Kathy Coleman
Holly Marshall
Spencer Milligan
Rick Marshall
Phillip Paley
Cha-Ka
Walker Edmiston
Enik
Ron Harper
Uncle Jack
Sharon Baird
Sa
Jon Locke
The Sleestack Leader
Bill Boyd
Sleestak
Cleveland Porter
Scutter McKay
Ta
Jack Tingley
Mike Westra
Joe A. Giamalva
Scott Fullerton
Dave Greenwood
Bill Laimbeer
John Lambert
Marvin Miller
Zarn
Van Snowden
Richard Kiel
Malak
Erica Hagen
Mrs. Marshall
Ron Masak
Beauregard Jackson
Scott Fulleron
Brooke Bundy
Sharon Williams
Brian Heublein
Rex Holman
Captain Ruben Van de Meer
Ned Romero
Lone Wolf
David Healy
Colonel Roscoe T. Post
Mickey Morton
Monster
Laurie Main
William Blandings
Marion Thompson
Medusa
Gregory Walcott
Captain Elmo Diggs
Ralph James
S'Latch
The Krofft Puppets
Dinosaurs(uncredited)
Ford Austin
Sleestak(uncredited)
Jon Kubichan
Park Ranger Rick Marshall(uncredited)