 Julie AndrewsMaria | Maria |
 Christopher PlummerCaptain Georg von Trapp | Captain Georg von Trapp |
 Eleanor ParkerThe Baroness | The Baroness |
 Charmian CarrLiesl von Trapp | Liesl von Trapp |
 Nicholas HammondFriedrich von Trapp | Friedrich von Trapp |
 Heather MenziesLouisa von Trapp | Louisa von Trapp |
 Angela CartwrightBrigitta von Trapp | Brigitta von Trapp |
 Debbie TurnerMarta von Trapp | Marta von Trapp |
 Kym KarathGretl von Trapp | Gretl von Trapp |
 Duane ChaseKurt von Trapp | Kurt von Trapp |
 Richard HaydnMax Detweiler | Max Detweiler |
 Anna LeeSister Margaretta | Sister Margaretta |
 Portia NelsonSister Berthe | Sister Berthe |
 Peggy WoodMother Abbess | Mother Abbess |
 Ben WrightHerr Zeller | Herr Zeller |
 Daniel TruhitteRolfe | Rolfe |
 Norma VardenFrau Schmidt | Frau Schmidt |
| GGilchrist StuartFranz | Franz |
 Marni NixonSister Sophia | Sister Sophia |
| EEvadne BakerSister Bernice | Sister Bernice |
 Doris LloydBaroness Ebberfeld | Baroness Ebberfeld |
| AAda Beth LeeSister Catherine (uncredited) | Sister Catherine (uncredited) |
| DDoreen TrydenSister Agatha (uncredited) | Sister Agatha (uncredited) |
| BBert StevensParty Guest (uncredited) | Party Guest (uncredited) |
 Gertrude AstorParty Guest (uncredited) | Party Guest (uncredited) |
 Frank BakerParty Guest (uncredited) | Party Guest (uncredited) |
 Bill LeeCaptain Georg von Trapp (singing voice) (uncredited) | Captain Georg von Trapp (singing voice) (uncredited) |
| MMargery MacKayMother Abbess (singing voice) (uncredited) | Mother Abbess (singing voice) (uncredited) |
 Leoda RichardsParty Guest | Party Guest |
| SSam HarrisParty Guest (uncredited) | Party Guest (uncredited) |
