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
Julia Sanderson / 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)