Bing Crosby

C. K. Dexter-Haven

Grace Kelly

Tracy Lord

Frank Sinatra

Mike Connor

Celeste Holm

Liz Imbrie

John Lund

George Kittredge

Louis Calhern

Uncle Willie

Sidney Blackmer

Seth Lord

Louis Armstrong

Self

Margalo Gillmore

Mrs. Seth Lord

Richard Garrick

Lords' Butler

Paul Bradley

Party Guest (uncredited)

Steve Carruthers

Party Guest (uncredited)

Gene Coogan

Party Guest (uncredited)

Franklyn Farnum

Party Guest (uncredited)

James Gonzalez

Party Guest (uncredited)

Stuart Holmes

Party Guest (uncredited)

Shep Houghton

Party Guest (uncredited)

Ruth Lee

Ruth (Jazz Festival Organizer) (uncredited)

Philo McCullough

Party Guest (uncredited)

Harold Miller

Party Guest (uncredited)

Hans Moebus

Party Guest (uncredited)

Monty O'Grady

Party Guest (uncredited)

Murray Pollack

Party Guest (uncredited)

Paul Power

Party Guest (uncredited)

Leoda Richards

Party Guest (uncredited)

Victor Romito

Party Guest (uncredited)

Scott Seaton

Party Guest (uncredited)

Helen Spring

Helen (Jazz Festival Organizer) (uncredited)

Norman Stevans

Party Guest (uncredited)