Bing Crosby
— Johnny Cabot
Betty Hutton
— Susan / Rosemary Allison
Sonny Tufts
— Windy 'Pinetop' Windhurst
Ann Doran
— Ruth
Gwen Crawford
— Tex
Noel Neill
— Dorothy
Catherine Craig
— Lt. Townsend
Anabel Shaw
— Isabel
Harry Barris
— Bandleader (uncredited)
Mae Clarke
— Ens. Kirk (uncredited)
Yvonne De Carlo
— Wave (uncredited)
Bess Flowers
— Patron at Cabana Club (uncredited)
William Forrest
— Lieutenant Commander (uncredited)
Oscar O'Shea
— Commodore (uncredited)
Cyril Ring
— Lieutenant Colonel (uncredited)
Minor Watson
— Superior Officer (uncredited)