Farley Granger as William Calhoun Denny

Shelley Winters as Katherine "Kate" Denny

William Demarest as O'Ryan

Francis L. Sullivan as Fat Freddy

Margalo Gillmore as Kate's Mother

Lon Chaney Jr. as Pinky

Hans Conried as Norbert Gillespie

Elisha Cook Jr. as Albert Jonas

Glenn Anders as Pete the Pusher

Allen Jenkins as Police Plainclothesman

Sheldon Leonard as Shortwave Bert

Marvin Kaplan as Max the Umbrella

Henry Corden as Numi

Don Beddoe as Sgt. O'Neill (uncredited)

Kathleen Freeman as Pet Shop Proprietor's Wife (uncredited)

Herb Vigran as Police Desk Sergeant (uncredited)

King Donovan as Lingerie Shop Proprietor (uncredited)