Gemma Arterton Sister Clodagh Actor Alessandro Nivola Mr. Dean Actor Aisling Franciosi Sister Ruth Actor Rosie Cavaliero Sister Briony Actor Karen Bryson Sister Philippa Actor Patsy Ferran Sister Blanche Actor Nila Aalia Sister Angu Ayah Actor Kulvinder Ghir General Toda Rai Actor Chaneil Kular Dilip Rai Actor Dipika Kunwar Kanchi Actor Gina McKee Sister Adela Actor Soumil Malla Joseph Anthony Actor Gianni Gonsalves Srimati Rai Actor Diana Rigg Mother Dorothea Actor Jim Broadbent Father Roberts Actor Charlotte Bruus Christensen Director Amanda Coe Writer, Executive Producer Cahal Bannon Producer Ayela Butt Executive Producer Andrew Macdonald Executive Producer Allon Reich Executive Producer Lucy Richer Executive Producer