Cécile de France as Jeannine Deckers / Sœur Sourire

Sandrine Blancke as Annie

Jan Decleir as Lucien Deckers

Johan Leysen as Père Jean

Chris Lomme as Mère Supérieure

Marie Kremer as Françoise

Jo Deseure as Gabrielle Decker

Filip Peeters as Antoine Brusson

Christelle Cornil as Soeur Christine

Fabienne Loriaux as La maîtresse des novices

Raphaël Charlier as Pierre

Philippe Résimont as Pollet

Tsilla Chelton as La doyenne des Dominicaines

Bernard Eylenbosch as Père Dubois

François Beukelaers as L'évêque

Marcel Dossogne as Le cardinal

Marijke Pinoy as Soeur Suzanne

Circé Lethem as Soeur Irène

Julien Masdoua as Soeur Claire