Elliott Gould
Robert Caulfield
James Brolin
Col. Charles Brubaker
Brenda Vaccaro
Kay Brubaker
Sam Waterston
Lt. Col. Peter Willis
O.J. Simpson
Cmdr. John Walker
Hal Holbrook
Dr. James Kelloway
Karen Black
Judy Drinkwater
David Huddleston
Hollis Peaker
David Doyle
Walter Loughlin
Denise Nicholas
Betty Walker
Robert Walden
Elliot Whitter
James B. Sikking
Control Room Man
Alan Fudge
Capsule Communicator
James Karen
Vice President Price
Jon Cedar
F.B.I. Man Number 1
Darrell Zwerling
Dr. Bergen
Milton Selzer
Dr. Burroughs
Lou Frizzell
Horace Gruning
Barbara Bosson
Alva Leacock
Bob Harks
Reporter (uncredited)
