Dr. David Bowman
Senator John Russell, Sr.
Stephen Lake
Garry
Thorvald
Jonah Pryce
Glenn / The Next One
Joseph Hepburn
Thomas Grambell
Peter
Dr. Steiger
Self
Rick Dylan
Paul Grenfell
Julian Bedford
Billy Lee Jackson
Cliff Letterman
Magnus Lofting
Lewis
German Pilot
David Clemens
Marquis de Sade
Dominic Lyall
Henri (voice)
Lee Carey
Pvt. Doll
Stan Curtis
Dr. David Priestly
Devon
Mr. Marlowe
Unnamed
Bill Weldon
Murray Stuart
General Custer
Mr. Bollenbecker
Montserrat
Elisha
Dr. Stevens
Mr. Smith
Himself
Ulim
Sam Fermoyle
Mr. X
Clay Anderson Jr.
Secretary Bayer
Historian
Stanley Kubrick
Eric
Christofer Perdeger
Oscar Minno
Johnny Morrison
Aldo
Jonathan Tisdale
Alec Benson
Eddie Phillips
Robert Stanley
Les Gerrick
Anthony Kirk
Frank
Lieutenant
Joseph Ross
Fleet Admiral Hood
Judge Walter Thornburg
Defense Attorney Paul Lyman
Bob Jolley
Andrew Keener
Klaus Rhinehart
Jason Reynard