Guest Stars Emma Fielding as Nicolette Natalie Simpson as Sister Simplice Archie Madekwe as Courfeyrac Angela Wynter as Toussaint Turlough Convery as Grantaire Reece Yates as Gavroche Thénardier Josef Altin as Claquesous Lorcan Cranitch as Chief Inspector / Prefect of Police Anna Calder-Marshall as Madame Rully Alex Jarrett as Azelma Thénardier Jumayn Hunter as Montparnasse Isis Hainsworth as Marie Claire Tsion Habte as Germaine Rachel Cuff as Stern Nun Caroline Donnelly as Dressmaker Judith Williquet as Faux-Cosette