Fred Astaire
Danny O'Neill

Paulette Goddard
Ellen Miller

Artie Shaw
Himself

Charles Butterworth
J. Lester Chisholm

Burgess Meredith
Hank Taylor

Frank Melton
Stu

Jimmy Conlin
Mr. Dunn

Don Brodie
Clerk

Marjorie Kane
Secretary

Joan Barclay
Receptionist

Willa Pearl Curtis
Scrubwoman

Phil Arnold
Shaw's First Manager (uncredited)

Bobby Barber
Room Service Waiter (uncredited)

Bus Bassey
Tenor Sax Player (uncredited)

William Benedict
Ticket Taker (uncredited)

Vernon Brown
Trombone Player (uncredited)

Billy Butterfield
Trumpet Player (uncredited)

Romaine Callender
Waiter (uncredited)

Jack Cathcart
Trumpet Player (uncredited)

Heinie Conklin
Reporter (uncredited)