Jodelle Ferland
Jodelle played Harmony in the Stargate Atlantis episode of the same name and also appeared on SG1 as a young Adria in the episode Flesh and Blood. She has also been in Smallville, Kingdom Hospital, Masters of Horror, Dead Like Me, Silent Hill, Breaking Dawn, R.L. Stine’s The Haunting Hour and plays Five on Dark Matter which returns for a third season next year. IMDB Twitter
Patrick Keating
Patrick played a councilman on the Stargate SG1 episode Revisions as well as appearing on Smallville, Blood Ties, Psych, Hope Island, Sanctuary and Fringe. IMDB
Dean Marshall
Dean guest starred on Stargate Atlantis as Sgt Bates on eight episodes and then as Agent Bates on an episode later in the series. He has also guest starred on Fringe, Supernatural, Arrow, Smallville, Da Vinci’s City Hall and now features in Chesapeake Shores as Inspector Christopher Whitcomb. IMDB