June Allyson

Jane Witherspoon / Lou Ellen Carter

Lucille Bremer

Sally Hessler

Judy Garland

Marilyn Miller

Kathryn Grayson

Magnolia Hawks / Kathryn Grayson

Van Heflin

James I. Hessler

Lena Horne

Julie LaVerne / Lena Horne

Van Johnson

Bandleader in Elite Club

Tony Martin

Gaylord Ravenal / Tony Martin

Dinah Shore

Una Trance / Dinah Shore

Frank Sinatra

Frank Sinatra

Robert Walker

Jerome Kern

Gower Champion

Dance Specialty

Cyd Charisse

Dance Specialty

Harry Hayden

Charles Frohman

Paul Langton

Oscar Hammerstein II

Angela Lansbury

London Specialty

Paul Maxey

Victor Herbert

Ray McDonald

Dance Specialty / George Budd

Mary Nash

Mrs. Muller

Virginia O'Brien

Ellie May Shipley / Virginia O'Brien

Dorothy Patrick

Eva Kern

Caleb Peterson

Joe (segment "Show Boat")

William Phillips

Joe Hennessey

Joan Wells

Sally Hessler as a Girl

Lyn Wilde

Specialty (segment 'The Cat and the Fiddle') (uncredited)

Lee Wilde

Specialty (segment 'The Cat and the Fiddle') (uncredited)

Bess Flowers

Backstage Well-Wisher (uncredited)

Russell Hicks

Producer (uncredited)

Frank McLure

Stage Door Johnny (uncredited)

Bert Moorhouse

Elite Club Diner (uncredited)

Robert Emmett O'Connor

Ed (uncredited)

Mary Hatcher

Showgirl (uncredited)

Harry 'Snub' Pollard

Show Boat Orchestra Drummer (uncredited)

Ray Teal

Movie Studio Orchestra Conductor (uncredited)

Esther Williams

Esther Williams - Signing Autographs (uncredited)

Sally Forrest

Showgirl (uncredited)

Byron Foulger

Frohman's Secretary (uncredited)