Onder andere met: Christopher George (Det. Lt. Bracken), Lynda Day George (Mary Riggs (as Linda Day)), Frank Braña (Det. Sgt. Holden), Edmund Purdom (The Dean), Ian Sera (Kendall James), Paul L. Smith (Willard (as Paul Smith)), Jack Taylor (Prof. Arthur Brown), Gérard Tichy (Dr. Jennings), May Heatherly (Mrs. Reston), Hilda Fuchs (Grace - the Dean's Secretary), Isabel Luque (Sylvia Costa), Roxana Nieto , Cristina Cottrelli (as Cristina Cottrel), Leticia Marfil , Silvia Gambino