Guest Stars Kathryn Alexandre as Tatiana Maslany's Acting Double Skyler Wexler as Kira Manning Josh Vokey as Scott Smith Zoé De Grand Maison as Gracie Johanssen Cynthia Galant as Charlotte Bowles Ari Millen as Rudy Tom McCamus as Alan Nealon Michiel Huisman as Cal Morrison Ari Millen as Styles Miller Andrew Gillies as Ethan Duncan Michelle Forbes as Dr. Marion Bowles Co Starring Danny MacDonald as Martin Funt Louise Nicol as Donnie's Mother Vanessa Burns as Nurse Allan Turner as Young Ethan Doug MacLeod as Justice of the Peace John Nelles as Male Nurse Credit Only Kristian Bruun as Donald "Donnie" Hendrix Millie Davis as Gemma Hendrix Drew Davis as Oscar Hendrix