Guest Stars Annette Kemp as Traci Shannon Esra as Sally Robyn Olivia as Marie Nicholas Bronkhorst as Dylan Paloma Hakeem Kae-Kazim as Saunders Sean Cameron Michael as Don Beatty Langley Kirkwood as Bill Granger Marius Weyers as Karl Sheedy Susan Danford as Landon Adrienne Pearce as Emily's Mother Kevin Otto as Interrogator #4 Stephen Jennings as Interrogator #1 Anthony Bishop as Interrogator #3 Clare Marshall as Heather Sheedy David Sherwood as Dr. Brennert James Earl Perry as Interrogator #2 Lauren Olivia De Bruyn as Mindy Granger Porteus Xandau as Research Student Thahira Sayed Leads as Research Student