Dennis O'Keefe as Barry Amsterdam

Abbe Lane as Connie Peters

Paul Stewart as Arnold 'Arnie' Valent

Allison Hayes as Joyce Kern, alias Sue Morton

Xavier Cugat as Benny Chico

Richard H. Cutting as David Healey

Chris Alcaide as Nate

William Challee as Dolan

Carroll McComas as Mother Valent (Uncredited)

Hugh Sanders as Pat Winters

John Zaremba as Robert Fenton

George Brand as Jack Roper

Hortense Petra as Cleo Allen (Uncredited)

Al Capone as Al Capone (Archive Footage) (Uncredited)

Steve Carruthers as Gambler (Uncredited)

Franklyn Farnum as Nightclub Patron (Uncredited)

Bess Flowers as Gambler (Uncredited)

Gil Frye as Tony (Uncredited)

Robert Haines as Party Guest (Uncredited)

Charles Horvath as Hugo (Uncredited)

Jack Kenney as Crowd Member at Murder Scene (Uncredited)

Tyler McVey as Henderson (Uncredited)

Joseph Mell as Markey (Uncredited)

Harold Miller as Fight Spectator (Uncredited)

Joe Ploski as Street Passerby / Party Guest (Uncredited)

Cosmo Sardo as Nightclub Patron / Party Guest (Uncredited)

Carl Sklover as Reporter on Murder Scene (Uncredited)

Bert Stevens as Nightclub Patron (Uncredited)

Mark Hanna as Brad Lacy (Uncredited)