Tuxan
George Peppard
John David Welles / Peter Bellamy
Michael Sarrazin
Dr. Plover
Anna Hagan
Dr. Hager
Hagan Beggs
Zabrinski
John Destry
Dr. Zahl
Milos Zatovic
Technician
Don Granbery
Secretary
Robin Coller
MP Sergeant
Bob Meneray
MP
Richard Sergeant
Nicole's Doctor
Ed Collier
John Mitchell
Nicole Devon
Christine Belford
Martin Moore
Reporter
Don Vance
William Nunn
Peter Lavender
Barry Cahill
Carl Mosely
Cliff Potts
Senator Stanton
James Olson
Frank Gossage
Tim O'Connor
Bender
James McEachin
General Hackett
Alan Oppenheimer
Charlie Kitchen
Roger Dressler
Henshaw
Ty Haller
Stunts
Bob Herron
Director
Lamont Johnson
Screenplay
Douglas Heyes
Producer
Hal Roach, Jr.
Original Music Composer
Paul Hoffert
Novel
Leslie P. Davies
Trevor Wallace
Editor
Edward M. Abroms
Director of Photography
Michael Reed
Focus Puller
Ron Drinkwater
Executive Producer
Earl A. Glick
Associate Editor
Bill Lewthwaite
Special Effects
Herbert Ewing
Wardrobe Supervisor
Ilse Richter
Script Supervisor
Margaret Hanly
Unit Production Manager
Harvie McCracken
Makeup Artist
Phyllis Newman
Sound Mixer
John W. Gusselle
Frederic L. Knudtson
Associate Producer
Frank Arrigo
Set Designer
Cam Porteous
Assistant Director
Roger Good
Roy Piper
Stunt Coordinator
David Ostere
Werner Keppler