Paul Douglas character Police Ofcr. Charlie Dunnigan
Richard Basehart character Robert Cosick
Barbara Bel Geddes character Virginia Foster
Debra Paget character Ruth
Agnes Moorehead character Christine Hill Cosick
Robert Keith character Paul E. Cosick
Howard Da Silva character Deputy Police Chief Moskar
Jeffrey Hunter character Danny Klempner
Martin Gabel character Dr. Strauss
Grace Kelly character Mrs. Louise Ann Fuller
Frank Faylen character Walter, room service waiter
Jeff Corey character Police Sgt. Farley
James Millican character Police Sgt. Boyle
Donald Randolph character Dr. Benson
Richard Beymer character (uncredited)
Ossie Davis character Cab Driver (uncredited)
Brad Dexter character Reporter (uncredited)
Leif Erickson character Bit Part (uncredited)
Sandra Gould character Hotel Switchboard Operator (uncredited)
Russell Hicks character Regan, Hotel Manager (uncredited)
Brian Keith character Extra (uncredited)
Harvey Lembeck character Cab Driver (uncredited)
John Randolph character Fireman (uncredited)
Janice Rule character Bit Part (uncredited)
Joyce Van Patten character Barbara (uncredited)
Willard Waterman character Mr. Harris (uncredited)
John Cassavetes character Reporter (uncredited)
Rusty Lane character Cop (uncredited)
Alix Talton character Miss Kelly (uncredited)
