Stargate SG-1

A military unit uses an ancient archway to travel the universe and battle alien parasites in this cult sci-fi adventure based on the 1994 film `Stargate.' Curmudgeonly Col. Jack O'Neill teams with an archaeologist, an astrophysicist and an alien to combat the Gou'ald, a serpentine species that requires humanoid hosts. The series began on Showtime in Jul (more…)

Season 1, Episode 20 There but for the Grace of God

First Aired: February 20, 1998

Jackson (Michael Shanks) is pulled into an alternate reality---one in which Earth has been invaded by the Goa'uld. Catherine: Elizabeth Hoffman. O'Neill: Richard Dean Anderson. Teal'c: Christopher Judge. Hammond: Don S. Davis. Carter: Amanda Tapping.

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Guest Cast