Tony Curtis
— Paul Callan
Jan Sterling
— Sonya Bartow
Mona Freeman
— Ann Hollis
Wallace Ford
— Jack 'Pop' Richardson
Connie Gilchrist
— Mrs. Richardson
Katherine Locke
— Mrs. Hollis
Harry Shannon
— Mike Callan
Louis Jean Heydt
— Whitey
Tom Powers
— Andy Randolph
Nella Walker
— Mrs. Hackett
Harry Guardino
— Lou Callan
Joe Gray
— Cliff
Harry Raven
— Murphy
Ted Stanhope
— Maris
Virginia Gregg
— Claire (uncredited)
Bobby Barber
Eleanor Bassett
Norman Bishop
— Lugano (uncredited)
Henry Blair
— Student (uncredited)
Nicky Blair
— Student (uncredited)
Gail Bonney
— Teacher (uncredited)
Harold Bostwick
— Cabbie (uncredited)
Paul Bradley
— Fight Fan (uncredited)
Milt Bronson
Patricia Burschinger
— Teacher (uncredited)
Harry Cheshire
— Dr. Gundling (uncredited)
George Chirello
Bing Conley
— Referee (uncredited)
Lucille Curtis
— Maid (uncredited)
Karl 'Killer' Davis
— Broadway Character (uncredited)