El cantante loco

Dean Martin Bill Miller

Jerry Lewis Ted Rogers

Polly Bergen Mary Turner

Marion Marshall Genevieve 'Frecklehead' Tait

Eddie Mayehoff Leo Lyman

Richard Erdman Ben Bailey

Frances Bavier Mrs. Rogers

Percy Helton Sam Robertson (uncredited)

Oliver Blake Theater Manager (uncredited)

Danny Borzage Diner Patron (uncredited)

Morgan Brown Wedding Guest / Audience Member (uncredited)

Steve Carruthers Audience Member (uncredited)

Danny Davenport Sam Heinz (uncredited)

Charles Evans Mr. Sutherland (uncredited)

Franklyn Farnum Party Guest / Audience Member (uncredited)

Tommy Farrell Tommy (uncredited)

George Ford Party Guest (uncredited)

Rudy Germane Party Guest (uncredited)

Joe Gilbert Wedding Guest (uncredited)

Herschel Graham Wedding Guest (uncredited)