Gifford Hoyt
Charles Bronson
Gunther Beckdorff
Jason Robards
Lorrimer
Clifton James
Pepe
Ernest Esparza III
Bustamante
José Chávez
Miguel
Carlos Romano
Aparicio
Martin LaSalle
British Crewman #1 (as Alan Conrad)
Conrad Hool
British Crewman #2
Stephen Peck
Inquest Clerk
Manuel Martín
Policeman
Aldo Sambrell
Sánchez (as Carlos Bravo)
Carlos Bravo y Fernández 'Carlhillos'
Marie-Claire Allesandri
Dominique Sanda
Hernandez
José Carlos Ruiz
Rosa
Ana De Sade
Eduardo
Pedro Damián
Canero
Gerardo Zepeda
Police Captain Torredo
Fernando Rey
Lewis Clarkson
Simon MacCorkindale
Hera
Camilla Sparv
Dr. Rudolfo Ramirez
Gilbert Roland
Horst
Denny Miller
John Baker
James Booth
Provincial Minister
Jorge Russek
Costume Design
Travilla
Original Music Composer
Jerry Goldsmith
Director
J. Lee Thompson
First Assistant Director
Jesús Marín
Editor
Michael F. Anderson
Producer
Lance Hool
Paul Joseph
Assistant Set Dresser
Ricardo Arana
Jorge Morales
Sound Recordist
Robert J. Litt
Story
Jaime Comas Gil
Special Effects
Jesus G. Duran
Sound Mixer
Gregg Landaker
Sound Editor
Jack K. Tillar
Production Manager
Joseph C. Cavalier
Francisco Day
Boom Operator
Jorge Gómez
Howard Neiman
Hairstylist
Christine George
Laurencio Cordero
Screenstory
Milton S. Gelman
James Granby Hunter
Screenplay
Morton S. Fine
Víctor Andrés Catena
Associate Producer
Makeup Artist
Joe DiBella
Second Assistant Director
Terence D. Buchinsky
Set Dresser
Jorge De La Borbolla
Set Decoration
Jaime Pérez Cubero
Property Master
Antonio Mata
Assistant Unit Manager
Aurelio Ortiz
Federico Serrano
Unit Production Manager
Alfonso Sánchez Tello
Executive Producer
Martin V. Smith
Art Direction
José Rodríguez Granada
Cableman
Efren Flores
Manuel Topete
Director of Photography
Álex Phillips Jr.