Elizabeth Taylor

Catherine Holly

Katharine Hepburn

Violet Venable

Montgomery Clift

Dr. Cukrowicz

Albert Dekker

Lawrence Hockstader

Mercedes McCambridge

Grace Holly

Gary Raymond

George Holly

Mavis Villiers

Miss Foxhill

Patricia Marmont

Nurse Benson

Joan Young

Sister Felicity

Maria Britneva

Lucy

Sheila Raynor

Mother of Young Patient (uncredited)

Julián Ugarte

Sebastian Venable (uncredited)

Gore Vidal

Audience Member at Operation (uncredited)

Rita Webb

Asylum Patient (uncredited)

Ian Wilson

Patient (uncredited)

Roberta Woolley

Nurse (uncredited)