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

Bruce Le

Karate Professor

Cristina Cottrelli

Jenny, pool victim

Roxana Nieto

Virginia Palmer - 1st Victim

Carmen Aguado

Carla - Aerobics Instructor

Paco Alvez

Alister Schwartz

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