The world is shocked by the appearance of three talking chimpanzees, who arrived mysteriously in a spacecraft. Intrigued by their intelligence, humans use them for research - until the apes attempt to escape.
as Cornelius
as Dr. Zira
as Dr. Lewis Dixon
as Dr. Stephanie 'Stevie' Branton
as Dr. Otto Hasslein
as The President
as Dr. Milo
as E-1
as E-2
as Committee Chairman
as General Winthrop
as Aide
as Lawyer (as Roy E. Glenn Sr.)
as Cardinal
as Army Officer
as Naval Officer
as Orderly
as Marine Captain
as Curator
as TV Newscaster
as Referee
as General Faulkner
as Armando
as Marine Corporal (uncredited)
as General (uncredited)
as Secretary of State (uncredited)
as Official at Briefing (uncredited)
as German Newscaster (uncredited)
as Undetermined (uncredited)
as Reporter (uncredited)
as Talking Baby Chimp (uncredited) (voice)
as Spectator (uncredited)
as Helicopter Pilot (uncredited)
as Official at Briefing (uncredited)
as Official at Briefing (uncredited)
as Bodyguard (uncredited)
as Aide (uncredited)
as Nova (archive footage) (uncredited)
as Reporter at Hotel (uncredited)
as Bystander (uncredited)
as Waiter (uncredited)
as Reporter (uncredited)
as Undetermined (uncredited)
as Heloise (uncredited)
as Reporter at Hotel (uncredited)
as Gen. Brody (uncredited)
as Reporter (uncredited)
as Control Room Officer (uncredited)
as Reporter (uncredited)
as Official at Briefing (uncredited)
as Hotel Receptionist (uncredited)
as British News Anchor (uncredited)