Cliff Robertson
— Col. Edwin A. 'Buzz' Aldrin Jr.
Shirley Knight
— Joan Aldrin
Charles Cioffi
— Dr. Sam Mayhill
Ralph Bellamy
— Col. Edwin E. Aldrin
Stefanie Powers
— Marianne
Kraig Metzinger
— Andy Aldrin
Tony Marks
— Mike Aldrin
Stephen Pearlman
— Dr. Hotfield
Stefan Gierasch
— Al Davis
Mark Roberts
Lance Henriksen
Conard Fowkes
George D. Wallace
Robert Karnes
Davis Roberts
Sandra de Bruin
Anne Newman Bacal
Robert B. Williams
Shelley Mitchell
