Otto Hecht
Roger Moore
Zeno
Telly Savalas
Sergeant Mann
Michael Sheard
Reistoffer
Richard Wren
Vogel
Philip Locke
Lantz
Steve Ubels
Zeno's Man
Paul Picerni
Paul Stassino
Manolis Peletis
Stassia Stakis
Lykourgos Kallergis
Lambros Tsangas
Professor Blake
David Niven
Mimi Denissi
Anne Marie Sten
Mary Dracopoulou
Elena Secota
Vanna Reville
POW (uncredited)
William Holden
Dottie Del Mar
Stefanie Powers
Eleana
Claudia Cardinale
Nat Judson
Richard Roundtree
Bruno Rotelli
Sonny Bono
Charlie
Elliott Gould
Volkmann
Anthony Valentine
Braun
Siegfried Rauch
Original Music Composer
Lalo Schifrin
Stunt Coordinator
Vic Armstrong
Screenplay
Edward Anhalt
Director
George P. Cosmatos
Story
Choreographer
Arlene Phillips
Assistant Director
Derek Cracknell
Stunt Double
Tracey Eddon
Costume Design
Yvonne Blake
Richard S. Lochte
Production Design
Michael Stringer
Supervising Art Director
John Graysmark
Camera Operator
Derek V. Browne
Casting
Irene Lamb
Special Effects
John Richardson
Makeup Artist
Paul Engelen
Location Manager
Richard Green
Producer
David Niven Jr.
Editor
Ralph Kemplen
Boom Operator
Ken Nightingall
Sound Editor
Nicholas Stevenson
Unit Publicist
Hunt Downs
Director of Photography
Gilbert Taylor
Steadicam Operator
Ray Andrew
Still Photographer
Bob Penn
Associate Producer
Colin M. Brewer
Jack Wiener
Eric Allwright
Sound Mixer
Derek Ball