"A deep-sea salvage expert enacts an elaborate plan to infiltrate and take revenge on a criminal organization that dealt him a foul misdeed."
Barry Newman
as John Talbot
Suzy Kendall
as Sarah Ruthven
John Vernon
as Vyland
Dolph Sweet
as Jablonsky
Ben Kingsley
as Royale
Ray McAnally
as Ruthven
Peter Marinker
as Larry
Roland Brand
as Deputy
Tony Anholt
as FBI Agent
Elliott Sullivan
as Judge Mollison
John Alderson
as Tanner (uncredited)
James Berwick
as (uncredited)
Hal Galili
as Cibatti (uncredited)
Ernie Heldman
as Bartender (uncredited)
Michael Tuchner
Director
Robert Carrington
Screenplay
Alistair MacLean
Novel
Roy Budd
Music
Mary Selway
Casting
Jay Kanter
Producer
Maurice Carter
Production Design
Gavrik Losey
Associate Producer
Ray Lovejoy
Editor
Syd Cain
Alan Ladd Jr.
Elliott Kastner
Executive Producer
Alex Thomson
Director of Photography
Ronnie Cogan
Hairstylist
Colin M. Brewer
Assistant Director
Bob Lawrance
Makeup Artist
Brian Frost
First Assistant Editor
Colin Corby
Camera Operator
David Munro
Second Assistant Director
Simon Wakefield
Set Dresser
Tony Jackson
Sound Recordist
Carey Loftin
Stunt Driver
Peter Cotton
Third Assistant Director
Stan Fiferman
ADR Editor
Stunt Coordinator
Derek Meddings
Special Effects
Joe Powell
Stunts
K.C. Jones
Second Unit Cinematographer
Chris Kenny
Nick Allder
Joie Chitwood Jr.
Bill Rowe
Sound Re-Recording Mixer