Ray Danton Director, Screenwriter Paul Burke Police Lt. Jeff Morgan Actor Jim Hutton Arnold James Masters Actor Julie Adams Dr. Laura Scott Actor Marland Proctor Motorcycle Cop Actor Nehemiah Persoff Dr. Gubner Actor Neville Brand Lemonowski Actor Aldo Ray Lt. Dave Anderson Actor Whit Bissell Dr. Paul Taylor Actor Greydon Clark Screenwriter Mikel Angel Screenwriter Mohammed Rustam Producer, Executive Producer Herb Pearl Cinematographer Michael Brown Film Editing William Kraft Original Music Joel Leonard Art Director Edward R. Morse Set Decoration