Director
Don Taylor
DIRECTOR
Stars (in credits order)
Roddy McDowall
Cornelius
Kim Hunter
Zira
Bradford Dillman
Dr. Lewis Dixon
Natalie Trundy
Dr. Stephanie Branton
Eric Braeden
Dr. Otto Hasslein
William Windom
The President
Sal Mineo
Milo
Albert Salmi
E-1
Jason Evers
E-2
John Randolph
Chairman
Harry Lauter
General Winthrop
M. Emmet Walsh
Aide
Roy Glenn
Lawyer
Peter Forster
Cardinal
Norman Burton
Army Officer
William Woodson
Naval Officer
Tom Lowell
Orderly
Gene Whittington
Marine Captain
Donald Elson
Curator
Bill Bonds
TV Newscaster
Army Archerd
Referee
James Bacon
General Faulkner
Ricardo Montalban
Armando
John Alderman
Marine Corporal(uncredited)
Alan Baxter
General(uncredited)
William Beckley
British news anchor(uncredited)
Jack Berle
Secretary of State(uncredited)
Paul Bradley
Official at Briefing(uncredited)
Karl Bruck
German Newscaster(uncredited)
Robert Cole
Reporter(uncredited)
Walker Edmiston
Talking Baby Chimp(uncredited)(voice)
Len Felber
Sig Frohlich
Spectator(uncredited)
Eddie Garrett
James W. Gavin
Helicopter Pilot(uncredited)
George Golden
James Gonzalez
Joe Gray
Bodyguard(uncredited)
Bob Harks
Aide(uncredited)
Elizabeth Harrower
Reporter at Hotel(uncredited)
Ed Haskett
Pitt Herbert
Security Guard Ed(uncredited)
Robert Hitchcock
Shep Houghton
Bystander(uncredited)
Joseph La Cava
Waiter(uncredited)
Arnold Meschen
Sketch artist at commission(uncredited)
Robert Nichols
Bob Okazaki
Japanese Broadcaster(uncredited)
Janos Prohaska
Heloise(uncredited)
Tony Regan
Stephen Roberts
Gen. Brody(uncredited)
Hank Robinson
James Sikking
Control Room Officer(uncredited)
Jack Slate
Eddie Smith
Arthur Tovey
William Tregoe
Hotel Receptionist(uncredited)
George P. Wilbur
Boxer(uncredited)