Guest Stars Jim Watson as Dr. Theo Hunter Ayisha Issa as Dr. June Curtis Torri Higginson as Claire Malone Laurence Leboeuf as Dr. Magalie "Mags" Leblanc Kenny Wong as Arnold De Luca Sirena Gulamgaus as Amira Hamed Mariah Inger as Rhoda DaSilva Sugith Varughese as Dr. Aajay Singh Gord Rand as Dr. Mark Novak Rekha Sharma as Dr. Neeta Devi Eddie Guilluame as Lou Marianne Farley as Elizabeth Bergeron Rick Roberts as Dr. Neil Olsen Ali Momen as Karim Esfahani Mark Rendall as Elliot Macha Grenon as Muriel Leblanc Peter MacNeill as Mac Hinkley Josh Cruddas as Luke Brandon McGibbon as Barry Jayne McLendon as Ruth Johnson