Blonde Venus

Marlene Dietrich

Helen Faraday, aka Helen Jones

Herbert Marshall

Edward 'Ned' Faraday

Cary Grant

Nick Townsend

Dickie Moore

Johnny Faraday

Gene Morgan

Ben Smith

Rita La Roy

'Taxi Belle' Hooper

Robert Emmett O'Connor

Dan O'Connor

Sidney Toler

Detective Wilson

Morgan Wallace

Dr. Pierce

Al Bridge

Bouncer (uncredited)

Marcelle Corday

Helen's Maid in France (uncredited)

Cecil Cunningham

Cabaret Manager in Norfolk (uncredited)