 Ethel MermanSally Adams | Sally Adams |
 Donald O'ConnorKenneth Gibson | Kenneth Gibson |
 Vera-EllenPrincess Maria | Princess Maria |
 George SandersCosmo Constantine | Cosmo Constantine |
 Billy De WolfePemberton Maxwell | Pemberton Maxwell |
 Helmut DantinePrince Hugo | Prince Hugo |
 Walter SlezakAugust Tantinnin | August Tantinnin |
 Steven GerayPrime Minister Sebastian | Prime Minister Sebastian |
 Ludwig StösselGrand Duke Otto | Grand Duke Otto |
 Lilia SkalaGrand Duchess Sophie | Grand Duchess Sophie |
 Charles DingleSenator Brockway | Senator Brockway |
 Emory ParnellSenator Gallagher | Senator Gallagher |
 Percy HeltonSenator Wilkins | Senator Wilkins |
 Bess FlowersLady Seated Behind Duchess (uncredited) | Lady Seated Behind Duchess (uncredited) |
| OOskar BeregiChamberlain (uncredited) | Chamberlain (uncredited) |
 George ChakirisDancer in The Ocarina Number (uncredited) | Dancer in The Ocarina Number (uncredited) |
| JJames ConatyGuest at Sally's Party (uncredited) | Guest at Sally's Party (uncredited) |
 Sayre DearingBall Guest (uncredited) | Ball Guest (uncredited) |
| SSam HarrisTownsman at Fair (uncredited) | Townsman at Fair (uncredited) |
 Torben MeyerRudolph (uncredited) | Rudolph (uncredited) |
 Forbes MurrayBall Guest (uncredited) | Ball Guest (uncredited) |
 Jeffrey SayreBall Guest (uncredited) | Ball Guest (uncredited) |
| BBert StevensBall Guest (uncredited) | Ball Guest (uncredited) |
 Harold Miller(uncredited) | (uncredited) |
 Barrie ChaseDancer (uncredited) | Dancer (uncredited) |
| CCarol RichardsPrincess Maria (singing) (uncredited) | Princess Maria (singing) (uncredited) |
