Mark Robson
Director
Larry Cohen
Story
Larry Cohen
Screenplay
Lorenzo Semple Jr.
Screenplay
Mark Robson
Producer
John Williams
Original Music Composer
Ernest Laszlo
Director of Photography
Dorothy Spencer
Editor
Joseph Dimmitt
Costumer
Carol White
Cathy Palmer
Paul Burke
Jack Byrnes
Mala Powers
Meg Stone
Scott Hylands
Kenneth Daly
James B. Sikking
Joe Menchell
Walter Brooke
Jerry Wolfe
Mathilda Calnan
Ilsa (as Matilda Calnan)
Gene Lyons
Dr. Blanker
Dennis Patrick
Dr. Parkington
Barry Cahill
FBI Agent Crosley
Andrea King
Brenda Frazier (uncredited)
Edith Atwater
Hospital Desk Nurse (uncredited)
Ron Masak
Paul Fleming (uncredited)
Harry Holcombe
Inspector Dixon (uncredited)
Leoda Richards
Restaurant Patron
