Barclay Hope
Barclay played Colonel Lionel Pendergast in six episodes of Stargate SG1 and also guest starred on Smallville, Eureka, Hellcats, The Killing, Cedar Cove, Battlestar Galactica, Riverdale and Once Upon A Time. IMDB
Theresa Lee
Theresa played the Chinese interpreter in the Stargate SG1 episode Fragile Balance and has also appeared on Psych, Smallville, Hiccups, Son of the Dragon and many shows for her native language. IMDB
Daniel Boileau
Daniel appeared just the once on Stargate as a cocooned wraith victim in the Atlantis episode The Gift, he has also appeared on Dead Like Me, Eureka, The Dead Zone, iZombie, The Tomorrow People and Arrow. IMDB Twitter
Guyle Fraizer
Guyle played a technician on the Stargate SG1 episode Nemesis. He has also appeared on The X-Files, Monk, Dark Angel, Supernatural and Touched by Evil. IMDB