Frank Sinatra as Clarence Doolittle

Kathryn Grayson as Susan Abbott

Gene Kelly as Joseph Brady

José Iturbi as Himself

Dean Stockwell as Donald Martin

Pamela Britton as Girl from Brooklyn

Rags Ragland as Police Sergeant

Billy Gilbert as Cafe Manager

Henry O'Neill as Admiral Hammond

Carlos Ramírez as Carlos

Edgar Kennedy as Police Captain

Grady Sutton as Bertram Kraler

Leon Ames as Admiral's Aide

Sharon McManus as Little Girl Beggar

James Flavin as Radio Cop

James Burke as Studio Cop

Henry Armetta as Hamburger Man

Chester Clute as Iturbi's Assistant

Mimi Aguglia as Old Lady (uncredited)

Bobby Barber as Salad Cook on Olvera Street (uncredited)

Douglas Cowan as Sailor (uncredited)

Eddie Hall as Sailor Discussing Lola (uncredited)

Milton Kibbee as Bartender Serving Double Scotch (uncredited)

Gloria Marlen as Woman (uncredited)

Robert Emmett O'Connor as Cop (uncredited)

Garry Owen as 2nd Soldier at USO (uncredited)

Ray Teal as Assistant Movie Director (uncredited)

Paulita Arvizu as Cashier in Café (uncredited)

Harry Barris as Sailor Asking Joe to Get Autographs (uncredited)

Joseph E. Bernard as Old Doorman (uncredited)

Sara Berner as Jerry Mouse (voice) (uncredited)

Steve Brodie as Soldier (uncredited)

Alex Callam as Commander (uncredited)

James Carlisle as Test Director (uncredited)

Wally Cassell as Sailor (uncredited)

Charles Coleman as Iturbi's Butler (uncredited)

Henry H. Daniels Jr. as Sailor (uncredited)

Frank Darien as Hollywood Bowl Janitor (uncredited)

Romere Darling as Waitress (uncredited)

Joe Dominguez as Man in Caé (uncredited)

Lester Dorr as Assistant Director (uncredited)

Ralph Dunn as Hollywood Bowl Cop (uncredited)

Virginia Engels as Woman with Cop (uncredited)

Sam Finn as Sailor (uncredited)

William Forrest as Movie Director (uncredited)

Don Garner as Soldier (uncredited)

Jane Green as USO Mother (uncredited)

Phil Hanna as Sailor (uncredited)

Lottie Harrison as Phone Operator (uncredited)

Jack Harvey as Admiral (uncredited)

Joe Haworth as Marine (uncredited)

Ben Heideman as Mexican Cook (uncredited)

Robert Homans as Old Cop (uncredited)

John James as Sailor (uncredited)

Nolan Leary as Milkman (uncredited)

Ruth Lee as Kindergarten Teacher (uncredited)

Orley Lindgren as Boy (uncredited)

Jack Luden as Assistant Director (uncredited)

Peggy Maley as Lana Turner Impersonator (uncredited)

Frank Marlowe as Shore Patrol Officer (uncredited)

Lock Martin as Giant (uncredited)

Esther Michelson as Hamburger Woman (uncredited)

Frank Mitchell as Sailor (uncredited)

Connie Montoya as Waitress (uncredited)

Forbes Murray as Passerby (uncredited)

Billy Nelson as Sailor (uncredited)

Bea Nigro as (uncredited)

Netta Packer as USO Mother (uncredited)

Milton Parsons as Man with Beard (uncredited)

Lee Phelps as Cop (uncredited)

Tom Quinn as (uncredited)

Allen Ray as Sailor (uncredited)

Paul Regan as Marine (uncredited)

Renie Riano as Studio Waitress (uncredited)

Sondra Rodgers as Jean (uncredited)

Naomi Scher as Waitress (uncredited)

Jerry Shane as Sailor (uncredited)

Connie Starr as Waitress (uncredited)

Tom Trout as Sailor (uncredited)

Elinor Troy as Tall Woman (uncredited)

Arthur Walsh as Sailor (uncredited)

Jerry Warren as (uncredited)

Claire Whitney as USO Mother (uncredited)

Florence Wix as Ride-Sharing Actress (uncredited)

Marjorie Wood as USO Mother (uncredited)

William Phillips as 1st Sailor on Pay Phone (uncredited)

John Cannon as Sailor (uncredited)

Gloria Hope as Receptionist (uncredited)