Guest Stars Valarie Pettiford as Emily Mather Leo Ashizawa as Osamu Ken Bones as Sigismund Nico Dowsell as Timur Olivia Grace Leonard as Rebecca Bishop-Clairmont Arlo John Croft as Rebecca Bishop-Clairmont Kobie Corsi as Philip Bishop-Clairmont Shobu Kapoor as Linda Crosby Ember E. Davies as Margaret Wilson Credit Only James Purefoy as Philippe de Clermont