Stephen McNally

Col. MacWilliams

Richard Jaeckel

Capt. Mike Doweling

Gail Kobe

Janet Doweling

John Kellogg

Major Nathan Jennings

Peter Baldwin

Lt. Gordon Halper

Russell Johnson

Major Benedict

Arthur Batanides

Lt. Ken Galvin

Dabney Coleman

Lt. Rupert Lawrence Howard (uncredited)

Bob Johnson

Project Adonis Intercom Announcer (voice) (uncredited)

Gerd Oswald

Director

Stephen Lord

Writer

Conrad L. Hall

Director of Photography

Richard K. Brockway

Supervising Film Editor