Susan Hemingway as Maria Rosalea Coutinho

Ana Zanatti as Mother Alma, the Grand Priestess

William Berger as Father Vicente

Herbert Fux as Satan

Vítor Mendes as António Fernando Queiroz de Melo

Anton Diffring as Old Priest

Aida Vargas as Joanna, a Nun

Esther Studer as Josefina

Dagmar Bürger as Nun

Herman José as Manuel Gonçalves

José Viana as The Grand Inquisitor

Patricia Da Silva as Maria's Mother

Victor de Sousa as Inquisitor's Aid

Nicolau Breyner as Prince's Aid

Aida Gouveia as Antónia, a Nun