Guest Stars Leah Cairns as Kathryn MacLaren J. Alex Brinson as Jeff Conniker Jennifer Spence as Grace Day Ian Tracey as Ray Green Enrico Colantoni as Vincent Ingram Amanda Tapping as Dr. Katrina Perrow Stephen Lobo as Agent Wakefield Chad Krowchuk as Simon Co Starring Todd Mann as Tall Man #2 Brad Mann as Tall Man #1 Callum Seagram Airlie as Taylor Glenn Ennis as Tall Man #3 Dan Payne as Tall Man #4 Jeremiah Oh as Tall Man #5 Grace Chin as News Anchor Norm Sherry as Tall Man #6 London Cardinal as Taylor Age 3 Colton Frost Hunter as Taylor Age 7