
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)