Doris Day as Ruth Etting

James Cagney as Martin Snyder

Cameron Mitchell as Johnny Alderman

Robert Keith as Bernard V. Loomis

Tom Tully as Frobisher

Harry Bellaver as Georgie

Richard Gaines as Paul Hunter

Peter Leeds as Fred Taylor

Claude Stroud as Eddie Fulton

Audrey Young as Jingle Girl

John Harding as Greg Trent

Larri Thomas as Chorus Girl

Winona Smith as Chorus Girl

Henry Kulky as Bouncer

Jay Adler as Orry

Dick Gordon as Man in Follies Audience (uncredited)

Marco López as Autograph Seeker (uncredited)