Keir Dullea
Dr. David Bowman
Acting
Gary Lockwood
Dr. Frank Poole
Acting
William Sylvester
Dr. Heywood Floyd
Acting
Douglas Rain
HAL 9000 (voice)
Acting
Daniel Richter
Moonwatcher
Acting
Leonard Rossiter
Dr. Andrei Smyslov
Acting
Margaret Tyzack
Elena
Acting
Robert Beatty
Dr. Ralph Halvorsen
Acting
Sean Sullivan
Dr. Roy Michaels
Acting
Frank W. Miller
Mission Controller (voice)
Acting
Bill Weston
Astronaut
Crew
Ed Bishop
Aries-1B Lunar Shuttle Captain
Acting
Glenn Beck
Astronaut
Acting
Alan Gifford
Poole's Father
Acting
Ann Gillis
Poole's Mother
Acting
Edwina Carroll
Aries-1B Stewardess
Acting
Penny Brahms
Stewardess
Acting
Heather Downham
Stewardess
Acting
Mike Lovell
Astronaut
Acting
John Ashley
Ape
Acting
Jimmy Bell
Ape
Acting
David Charkham
Ape
Acting
Keith Denny
Ape
Costume & Make-Up
Jonathan Daw
Ape
Acting
Péter Delmár
Ape
Acting
Terry Duggan
Ape Attacked by Leopard
Acting
David Fleetwood
Ape
Acting
Danny Grover
Ape
Acting
Brian Hawley
Ape
Acting
David Hines
Ape
Acting
Anthony Jackson
Ape
Acting
John Jordan
Ape
Acting
Scott MacKee
Ape
Acting
Laurence Marchant
Ape
Acting
Darryl Paes
Ape
Acting
Joe Refalo
Ape
Acting
Andy Wallace
Ape
Acting
Bob Wilyman
Ape
Acting
Richard Woods
Ape Killed by Moon-Watcher
Acting
Maggie London
Hostess in Elevator (uncredited)
Acting
Chela Matthison
Receptionist (uncredited)
Acting
Judy Keirn
Voice Print Identification Girl (uncredited)
Acting
Vivian Kubrick
Floyd's Daughter (uncredited)
Acting
Kenneth Kendall
BBC-12 Announcer (uncredited)
Acting
Kevin Scott
Miller (uncredited)
Acting
Martin Amor
Interviewer (uncredited)
Acting
S. Newton Anderson
Young Man (uncredited)
Acting
Sheraton Blount
(uncredited)
Acting
Ann Bormann
(uncredited)
Acting
Julie Croft
(uncredited)
Acting
Penny Francis
(uncredited)
Acting
Marcella Markham
(uncredited)
Acting
Irena Marr
Russian Scientist (uncredited)
Acting
Krystyna Marr
Russian Scientist (uncredited)
Acting
Kim Neil
(uncredited)
Acting
Jane Pearl
(uncredited)
Acting
Penny Pearl
(uncredited)
Acting
Burnell Tucker
TMA-1 Site Photographer (uncredited)
Acting
John Swindells
TMA-1 Site Technician #1 (uncredited)
Acting
John Clifford
TMA-1 Site Technician #2 (uncredited)
Acting
Stanley Kubrick
Astronaut Breathing (voice) (uncredited)
Directing
Harry Fielder
Moonwalker (uncredited)
Acting