Alison Brie as Sister Alessandra

Dave Franco as Masseto

Kate Micucci as Sister Ginevra

Aubrey Plaza as Sister Fernanda

John C. Reilly as Father Tommasso

Molly Shannon as Sister Marea

Fred Armisen as Bishop Bartolomeo

Jemima Kirke as Marta

Lauren Weedman as Francesca

Nick Offerman as Bruno

Paul Reiser as Ilario

Adam Pally as Guard Paolo

Paul Weitz as Lurco

Jon Gabrus as Guard Gregorio

Rolando Abbarchi as Old Man Priest

Teresa Marini as Viola

Dina Lenzi as Elderly Nun

Maria Irene Vetrano as Nun

Letizia Giuntini as Nun

Samanta Gualtieri as Nun

Sena Lippi as Nun

Sonia Luscia as Nun

Margherita Ferri as Nun

Anna Maria Baldocchi as Witch

Benedetta Guintini as Witch

Benedetta Spinetti as Witch

Carla Buscemi as Witch

Elisa Pierini as Witch

Laura Salvini as Witch

Marta Petracchi as Witch

Rossana Bena as Witch

Rossella Ambrosini as Witch

Sara Venut as Witch

Teresa Recchia as Witch

Vanessa Villa as Witch

Colin DeMartini as Servant

Fabio Magnani as Servant

Luca Rondinini as Servant

Luigi Biava as Servant

Pierfrancesco Melley as Servant

Paolo Preziuso as Servant