 Elizabeth TaylorCatherine Holly | Catherine Holly |
 Katharine HepburnViolet Venable | Violet Venable |
 Montgomery CliftDr. Cukrowicz | Dr. Cukrowicz |
 Albert DekkerLawrence Hockstader | Lawrence Hockstader |
 Mercedes McCambridgeGrace Holly | Grace Holly |
 Gary RaymondGeorge Holly | George Holly |
 Mavis VilliersMiss Foxhill | Miss Foxhill |
 Patricia MarmontNurse Benson | Nurse Benson |
 Joan YoungSister Felicity | Sister Felicity |
| MMaria BritnevaLucy | Lucy |
| SSheila RobbinsDr. Hockstader's Secretary | Dr. Hockstader's Secretary |
| DDavid CameronYoung Blonde Intern | Young Blonde Intern |
| GGrace Denbigh RussellAsylum Patient (uncredited) | Asylum Patient (uncredited) |
| BBrenda DunrichNurse (uncredited) | Nurse (uncredited) |
 Eddie FisherStreet Urchin (uncredited) | Street Urchin (uncredited) |
| FFrank MerloAudience Member at Operation (uncredited) | Audience Member at Operation (uncredited) |
 Sheila RaynorMother of Young Patient (uncredited) | Mother of Young Patient (uncredited) |
| BBeatrice ShawElderly Lady (uncredited) | Elderly Lady (uncredited) |
| FFlorence StarkPatient (uncredited) | Patient (uncredited) |
 Julián UgarteSebastian Venable (uncredited) | Sebastian Venable (uncredited) |
 Gore VidalAudience Member at Operation (uncredited) | Audience Member at Operation (uncredited) |
 Rita WebbAsylum Patient (uncredited) | Asylum Patient (uncredited) |
| SSandra WhiteYoung Patient (uncredited) | Young Patient (uncredited) |
 Ian WilsonPatient (uncredited) | Patient (uncredited) |
 Roberta WoolleyNurse (uncredited) | Nurse (uncredited) |
