Christopher George
Det. Lt. Bracken
Lynda Day George
Mary Riggs
Frank Braña
Det. Sgt. Holden
Edmund Purdom
The Dean
Ian Sera
Kendall James
Paul L. Smith
Willard
Jack Taylor
Prof. Arthur Brown
Gérard Tichy
Dr. Jennings
May Heatherly
Mrs. Reston
Leticia Marfil
Suzie - Locker Room Victim
Hilda Fuchs
Grace
Isabel Luque
Sylvia Costa (as Isabelle Luque)
Silvia Gambino
Mary, elevator victim
Emilio Linder
Coroner
Pilar Alcón
Girl in Puzzle
Huang Kin-Lung
Karate Professor
Cristina Cottrelli
Jenny, pool victim
Carmen Aguado
Carla - Aerobics Instructor
Paco Alvez
Alister Schwartz
Joanne Metherell
Virginia Palmer - 1st Victim
Crew
Juan Piquer Simón
Director
Dick Randall
Screenplay
Dick Randall
Producer
Juan Mariné
Director of Photography
Librado Pastor
Original Music Composer
Antonio Gimeno
Editor
Stephen Minasian
Producer
Stelvio Cipriani
Original Music Composer
Carlo Maria Cordio
Original Music Composer
Basilio Cortijo
Special Effects
Roberto Loyola
Writer
Gumersindo Andrés
Set Decoration
José Luis Martínez
Gaffer
Gumersindo Andrés
Costume Design
Manuel Pinilla
Assistant Director
Gonzalo Gonzalo
Costume Design
Gonzalo Gonzalo
Set Decoration
Alicia Regueiro
Hairstylist
José Antonio Villalba
Assistant Camera
Julio Bragado Darman
Camera Operator
Juan Jesús Escudero
Set Dresser
Pedro Camacho
Makeup Artist
Francisco Ariza
Production Manager
Mercedes Marfil
Costumer