William Bates
Jack Palance
Sonia Kendall
Joan Collins
John McKenzie
Manuel de Blas
Joe - Barkeeper
Ricardo Palacios
Hank McKenzie
Remo De Angelis
Father
Attilio Dottesio
Mary Chambers
Elisabetta Virgili
Jim Chambers
Fernando E. Romero
Bates' Henchman
José Canalejas
Novel
Jack London
Co-Producer
Harry Alan Towers
Screenplay
Juan Logar
Original Music Composer
Stelvio Cipriani
Stunt Coordinator
Director
Gianfranco Baldanello
Producer
Joseph Allegro
Elliot Geisinger
Editor
Francesco Bertuccioli
Director of Photography
José F. Aguayo Jr.
Jesús Rodríguez
John Fonseca