Jonathon Young
Jonathon guest starred on two Stargate Atlantis episodes playing Dr Parrish (Remnants and Runner). He also had a recurring role on Sanctuary as Nkola Tessla and has also been on Terminal City, Eureka, Intruders, Impastor and Murdoch Mysteries. IMDB Twitter
Patrick McKenna
Patrick played Dr Jay Felger in two Stargate SG1 episodes (The Other Guys and Avenger 2.0). He also appeared in The Red Green Show, Robocop the series, Sidekick, Spliced, Best Ed and the Canadian medical drama Remedy. IMDB Twitter
David Winning
David directed the Stargate Atlantis first season episode “Childhoods End” and has also directed episodes of Andromeda, Earth:Final Conflict, Blood Ties, Dinotopia, The Stanley Dynamic and Lost Girl. IMDB Twitter Official