Sydney Sweeney

as Sister Cecilia

Álvaro Morte

as Father Sal Tedeschi

Simona Tabasco

as Sister Mary

Benedetta Porcaroli

as Sister Gwen

Giorgio Colangeli

as Cardinal Franco Merola

Dora Romano

as Mother Superior

Giulia Heathfield Di Renzi

as Sister Isabelle

Giampiero Judica

as Doctor Gallo