Bud Abbott

as Mr. Dinkel / Mr. Dinkelpuss

Lou Costello

as Jack / Jack Strong

Buddy Baer

as Sgt. Riley / The Giant

Dorothy Ford

as Receptionist / Polly

Barbara Brown

as Mrs. Strong

David Stollery

as Donald Larkin

William Farnum

as The King

Shaye Cogan

as Eloise Larkin / Princess Eloise (Darlene)

James Alexander

as Arthur / Prince Arthur / Troubador

Johnny Conrad

as Dancer

Almira Sessions

as Mrs. Mergatroyd (uncredited)

Mel Blanc

as Farm Animals (uncredited) (voice)

Arthur Shields

as Patrick the Harp (uncredited)