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