Riven

Franco Nero

as Mike di Donato

Michael Forest

as Donovan (as Mike Forrest)

Patricia Rivera

as Juanita

Jorge Luke

as Acapulco

Enzo G. Castellari

as Il killer (as E. Girolami)

Rocco Lerro

as Il picchiatore

Mirta Miller

as Rosy

Eduardo Fajardo

as Il capitano Gómez

Werner Pochath

as Ramon (as Werner Pochat)

Nick Alexander

as Il killer (voice) (uncredited)

Larry Dolgin

as Acapulco / Donovan (voice) (uncredited)

Steven Luotto

as Waiter (voice) (uncredited)

Edward Mannix

as Il capitano Gómez (voice) (uncredited)

Susan Spafford

as Rosy (voice) (uncredited)

Pat Starke

as Juanita (voice) (uncredited)

Frank von Kuegelgen

as Ramon (voice) (uncredited)

Jesús R. Folgar

Screenplay

Alfredo Giannetti

Story

Alfredo Giannetti

Screenplay

Jaime Comas Gil

Screenplay

Gisella Longo

Story

Tito Carpi

Screenplay

Enzo G. Castellari

Director

Francisco Flores

Associate Producer

Giancarlo Granatelli

Camera Operator

Guido De Angelis

Music

Roberto Amicucci

Camera Operator

Massimo Gasperini

Camera Operator

Nino Segurini

Executive Producer

Luggi Waldleitner

Producer

Jaime Comas Gil

Co-Producer

Massimiliano Cerchi

Special Effects

Fabrizio Di Biasi

Camera Operator

Karl Spiehs

Line Producer

Maurizio De Angelis

Music

Francesco Fabbi

Costume Design

Giovanni Bergamini

Camera Operator

Enzo Doria

Producer

Massimo Gasperini

Editor

Rocco Lerro

Stunts

Livia Rava

Camera Operator

Gisella Longo

Art Direction

Ramón Bravo

Underwater Director of Photography

Franco Nero

Co-Producer

Raúl Pérez Cubero

Cinematography

Gianfranco Amicucci

Editor

Jesús R. Folgar

Production Manager

Roberto Sannino

Assistant Production Design

Mario Molli

Assistant Production Design