Don Ameche
Phil O'Neil (Credits) / Phil 'Mac' McNeil
Betty Grable
Kathryn 'Kay' Latimer, also called Miss Adams
Robert Cummings
Jeffrey 'Jeff' Boulton II
Jack Haley
Jack O'Hara
Carole Landis
Barbara Latimer, aka Miss Sears
Charlotte Greenwood
Aunt Susan 'Sue' Latimer
Cobina Wright
Connie Fentress
Lynne Roberts
Jennie May
Robert Conway
Mr. Lester
George Lessey
William 'Willie' Boulton
Robert Greig
Brearley, Boulton's Butler
Minor Watson
Mr. Jim Reynolds
Fortunio Bonanova
Mr. Pretto, the Hotel Manager
George Humbert
Texas Tommy Cafe Proprietor
Spencer Charters
Joe, the Postman
Gino Corrado
Boulton's Chef (uncredited)
Hermes Pan
Kay's Dance Partner in Conga Number (uncredited)