Michael Welch
Michael played the young Jack O’Neill in the Stargate SG1 episode Fragile Balance, he also starred in Joan of Arcadia and has appeared on GRIMM, Star Trek Insurrection, The Riches, Bones, CSI and Criminal Minds. IMDB Twitter Official
Aaron Craven
Aaron appeared three times on Stargate, he was a Wraith commander in the Atlantis episode Outsiders and Matar in Line in the Sand (SG1) and Captain Rogers in Rules of Engagement (SG1). He has also guest starred on The 4400, The Unit, Smallville, Fringe, The Day the Earth Stood Still, Ties That Bind and Fairly Legal. IMDB Twitter
Noel Callahan
Noel played “the boy” in the SG1 episode Beast of Burden and went on to appear on Dark Angel, Romeo, Mysterious Ways, Just Cause and voiced characters in Gadget and the Gadgetinis. IMDB
Christopher Attadia
Christopher played the young Eric who befriended Teal’c in the SG1 episode Affinity, he has also been in Life Unexpected, The Dead Zone, The Santa Clause 2, Tru Calling and Saved. IMDB
In Memory of…
August Schellenberg (July 25 1936 – August 15 2013)
August appeared on two episode of Stargate Universe (Epilogue and Common Descent) as the character Yaozu. He also appeared on Saving Grace, The New World, Due South and North of 60.
IMDB