Guest Stars Brian Benben as Dr. Sheldon Wallace James Morrison as William White Agnes Bruckner as Heather Parker Amanda Detmer as Morgan Gellman Josh Hopkins as Dr. Noah Barnes Amanda Foreman as Katie Kent Robin Weigert as Amelia Sawyer D.B. Woodside as Duncan Tessa Thompson as Zoe Salter Co Starring Hailey Sole as Betsey Parker DaJuan Johnson as Martin "Marty" Salter