Martin Amor Interviewer (uncredited)
Mike Lovell Astronaut
David Hines Ape
Joe Refalo Ape
Irena Marr Russian Scientist (uncredited)
Frank W. Miller Mission Controller (voice)
Jimmy Bell Ape
Laurence Marchant Ape
Jonathan Daw Ape
Darryl Paes Ape
Brian Hawley Ape
Penny Francis (uncredited)
Penny Pearl (uncredited)
S. Newton Anderson Young Man (uncredited)
Ann Bormann (uncredited)
Jane Pearl (uncredited)
Bob Wilyman Ape
Graham Freeborn Makeup Artist
Kim Neil (uncredited)