Bing Crosby as C. K. Dexter-Haven

Grace Kelly as Tracy Lord

Frank Sinatra as Mike Connor

Celeste Holm as Liz Imbrie

John Lund as George Kittredge

Louis Calhern as Uncle Willie

Sidney Blackmer as Seth Lord

Louis Armstrong as Self

Margalo Gillmore as Mrs. Seth Lord

Lydia Reed as Caroline Lord

Gordon Richards as Dexter-Haven's Butler

Richard Garrick as Lords' Butler

Don Anderson as Party Guest (uncredited)

Mary Bayless as Party Guest (uncredited)

Lulu Mae Bohrman as Party Guest (uncredited)

Hugh Boswell as Parson (uncredited)

Paul Bradley as Party Guest (uncredited)

Tex Brodus as Party Guest (uncredited)

Steve Carruthers as Party Guest (uncredited)

Beulah Christian as Party Guest (uncredited)

Gene Coogan as Party Guest (uncredited)

Paul Cristo as Party Guest (uncredited)

William Duray as Party Guest (uncredited)

Joe Evans as Waiter (uncredited)

Franklyn Farnum as Party Guest (uncredited)

James Gonzalez as Party Guest (uncredited)

Stuart Holmes as Party Guest (uncredited)

Shep Houghton as Party Guest (uncredited)

Paul Keast as Editor (uncredited)

Richard Keene as Mac (uncredited)

Perk Lazelle as Party Guest (uncredited)

Ruth Lee as Ruth (Jazz Festival Organizer) (uncredited)

Thomas Martin as Waiter (uncredited)

Philo McCullough as Party Guest (uncredited)

Harold Miller as Party Guest (uncredited)

Hans Moebus as Party Guest (uncredited)

Monty O'Grady as Party Guest (uncredited)

Foster H. Phinney as Party Guest (uncredited)

Murray Pollack as Party Guest (uncredited)

Paul Power as Party Guest (uncredited)

Leoda Richards as Party Guest (uncredited)

Victor Romito as Party Guest (uncredited)

Scott Seaton as Party Guest (uncredited)

Reginald Simpson as Lawrence (Uncle Willie's Butler) (uncredited)

Helen Spring as Helen (Jazz Festival Organizer) (uncredited)

Norman Stevans as Party Guest (uncredited)

Florence Wix as Party Guest (uncredited)