cast
- Elliott Gould
- Sean Rogers
- Trevor Howard
- Col. Azarin
- Joseph Bova
- Lucas Martino
- Edward Grover
- Finchley
- James Noble
- Gen. Deptford
- John Lehne
- Haller
- Lyndon Brook
- Dr. Barrister
- Joy Garrett
- Barbara
- Ivan Desny
- Gen. Sturmer
- Alexander Allerson
- Dr. Korthu
- Michael Lombard
- Dr. Besser
- John Stewart
- Frank Heywood
- Bruce Boa
- Miller
- Fred Vincent
- Douglas
- Herb Andress
- FBI Agent #1
- Del Negro
- FBI Agent #2
- Frank Schuller
- FBI Agent
crew
- Jack Gold
- Director, Screenwriter
- Barry Levinson
- Producer
- Algis Budrys
- Book Author
- John Gould
- Screenwriter
- Petrus Schloemp
- Cinematographer
- John Cameron
- Composer (Music Score)
- Norman Wanstall
- Editor
- Peter Scharff
- Art Director
- Ille Sievers
- Costume Designer
- Richard Richtsfeld
- Special Effects
- Sigi Rothemund
- First Assistant Director
- Frank Winterstein
- Production Manager
- Shirley Rich
- Casting
- Colin Arthur
- Makeup Special Effects
- Remy Julienne
- Stunts Coordinator
