Farley Granger as Nicholas 'Nicky' Bradna

Anthony Quinn as Phil Regal

Anne Bancroft as Rosalie Regalzyk

Peter Graves as Joe McFarland

Else Neft as Mrs. Regalzyk

Sara Berner as Millie Swadke

Jerry Paris as Latzi Franks

Mario Siletti as Antonio Cardini

James Flavin as Attorney Michael X. Flanders

Whit Bissell as Dist. Atty. Blaker

Joe Turkel as Shimmy

Joyce Terry as Margie (as Joy Terry)

Harry Tyler as I. Barricks

Jerry Hausner as Louie

Frank Baker as

G. Pat Collins as

Jeanne Cooper as Evelyn, Latzi's fiancée (uncredited)

Angela Stevens as

Frank Sully as

Lee Van Cleef as Harry Goldish (uncredited)

Mickey Knox as

John Larch as Desk Sergeant (uncredited)

Mort Mills as Finney (uncredited)