Introduction
Stargate SG-1 resumes the plot of the original feature film and follows the present-day adventures of SG-1, a military team from Earth. SG-1 and two dozen other SG teams venture to distant planets using an alien portal known as a Stargate, which is housed in a top-secret United States Air Force military base known as Stargate Command underneath Cheyenne Mountain in Colorado. SG-1 eventually learns that highly evolved human-like beings, known as the Ancients, had originally built the Stargate network millions of years earlier, before they used their extraordinary powers and technology to ascend to a higher plane of existence, after which they pledged to not interfere in the
lives of other species. In the first eight seasons, the mission of the SG teams is to explore the galaxy and search for alien technology and allies to defend Earth against the Goa'uld, a parasitic alien race that takes humans as unwilling hosts. As explained in the series' backstory, the Goa'uld transported human slaves from Earth to other habitable planets across the galaxy thousands of years ago and now poses as gods of Ancient Earth mythologies, The Ori, who belong to the same race of ascended beings as the Ancients but who use their powers to subjugate other species, forcing them to worship the Ori and to believe a doctrine of religious fundamentalism, assume the role of the main
antagonists in seasons 9 and 10.
lives of other species. In the first eight seasons, the mission of the SG teams is to explore the galaxy and search for alien technology and allies to defend Earth against the Goa'uld, a parasitic alien race that takes humans as unwilling hosts. As explained in the series' backstory, the Goa'uld transported human slaves from Earth to other habitable planets across the galaxy thousands of years ago and now poses as gods of Ancient Earth mythologies, The Ori, who belong to the same race of ascended beings as the Ancients but who use their powers to subjugate other species, forcing them to worship the Ori and to believe a doctrine of religious fundamentalism, assume the role of the main
antagonists in seasons 9 and 10.
Cast
Jack O'Neill
Richard Dean Anderson plays the role of Colonel Jack O'Neill in the 1st to the 7th seasons until he is promoted to Brigadier General at the beginning of season 8 after Major General George Hammond is reassigned to a position in Washington. In season 9 Jack is promoted Major General and is reassigned to Washington with Major General Henry Landry Replacing him at Stargate Command.
Samantha Carter
Amanda Tapping plays the role of Captain Samantha Carter from season 1 right through to season 10 she is a brilliant young astrophysicist and United States Air Force personal who joins SG-1 under the command of Col. O'Neill in the pilot episode. Following her promotion to Major in season 3, she is promoted to Lieutenant Colonel early in season 8 and assumes command of SG-1 until seasons 9 and 10 when she assists Lt. Col. Cameron Mitchell.
Daniel Jackson
Michael Shanks plays the role of Daniel Jackson in Seasons 1 - 5 and 7 - 10 with a recurring role in season 6. He is a brilliant Egyptologist whose theories about Egyptian pyramids having been built by aliens led to his participation in the original Stargate mission in the feature film. He joins the SG-1 team in the pilot episode, but his naïveté and curiosity regularly create obstacles for the team. He gradually evolves from being an archaeologist and translator into the moral conscience for the team and remains part of SG-1 until he ascends to a higher plane of existence at the end of season 5. At the beginning of season 7 he rejoins SG-1 after he becomes de-ascended.
Teal'c
Christopher Judge plays the role of Teal’c in seasons 1 – 10 he is a quiet and strong Jaffa alien who defects from his
position as the First Prime of the Goa'uld Apophis. He joins SG-1 after the pilot episode in hopes of leading his race to freedom. Despite succeeding in this goal at the end of season 8, he remains a member of SG-1 until the end of the series.
Janet Fraiser
Teryl Rothery plays the role of Captain Janet Fraiser, the resident Chief Medical Officer of the SGC. She is
responsible for maintaining the health of the SG teams, as well as the SGC's support staff and base personnel. On many occasions, she also cares for the health of alien refugees to Earth, including Goa'uld symbiotes. Dr. Fraiser is
killed by a staff-weapon blast in season 7's "Heroes" during an off-world medical emergency.
George Hammond
Don S. Davis plays the role of George Hammond He is a United States Air Force Major General who is head of Stargate Command in the first seven seasons. Besides recurring in seasons 8 through 10 of Stargate SG-1, he appears in season 1 of Stargate Atlantis. Davis died from a heart attack in June 2008, making his appearance in Stargate: Continuum his last
Cameron Mitchell
Ben Browder plays the role of Cameron Mitchell A United States Air Force Lieutenant Colonel who is assigned as the new commanding officer of SG-1 at the beginning of season 9 and commands SG-1 with Lt. Col. Carter's assistance until the end of season 10. He is promoted to Colonel between his appearances in Stargate: The Ark of Truth and Stargate: Continuum.
Jonas Quinn
Corin Nemec plays the role of Jonas Quinn A humanoid alien and scientist from the country of Kelowna on the planet Langara. Daniel sacrifices his life at the end of season 5 in an attempt to save Kelowna, but reaction of the Kelownan leaders causes Jonas to turn his back on Langara. Jonas is a fast learner and fills Daniel's empty spot on SG-1 in season 6. Following Daniel's return, Jonas returns to his planet and remains a recurring character in season 7.
Henry Landry
Beau Bridges plays the role of Henry Landry is a United States Air Force Major General and the commander of Stargate Command in seasons 9 and 10. He is the estranged father of the SGC's medical officer Carolyn Lam and appears in both Stargate films and in seasons 2 and 3 of Stargate Atlantis.
Vala Mal Doran
Claudia Black plays the role of Vala Mal Doran A con artist from an unnamed planet and a former human host to the Goa'uld Qetesh. Her first appearance is in season 8's "Prometheus Unbound" where she steals the Prometheus to trade for weapons grade Naqudah. In her recurring role in season 9, she and Daniel unintentionally set off the new Ori threat. She joins SG-1 after giving birth to the new leader of the Ori at the beginning of season 10.
Jack O'Neill
Richard Dean Anderson plays the role of Colonel Jack O'Neill in the 1st to the 7th seasons until he is promoted to Brigadier General at the beginning of season 8 after Major General George Hammond is reassigned to a position in Washington. In season 9 Jack is promoted Major General and is reassigned to Washington with Major General Henry Landry Replacing him at Stargate Command.
Samantha Carter
Amanda Tapping plays the role of Captain Samantha Carter from season 1 right through to season 10 she is a brilliant young astrophysicist and United States Air Force personal who joins SG-1 under the command of Col. O'Neill in the pilot episode. Following her promotion to Major in season 3, she is promoted to Lieutenant Colonel early in season 8 and assumes command of SG-1 until seasons 9 and 10 when she assists Lt. Col. Cameron Mitchell.
Daniel Jackson
Michael Shanks plays the role of Daniel Jackson in Seasons 1 - 5 and 7 - 10 with a recurring role in season 6. He is a brilliant Egyptologist whose theories about Egyptian pyramids having been built by aliens led to his participation in the original Stargate mission in the feature film. He joins the SG-1 team in the pilot episode, but his naïveté and curiosity regularly create obstacles for the team. He gradually evolves from being an archaeologist and translator into the moral conscience for the team and remains part of SG-1 until he ascends to a higher plane of existence at the end of season 5. At the beginning of season 7 he rejoins SG-1 after he becomes de-ascended.
Teal'c
Christopher Judge plays the role of Teal’c in seasons 1 – 10 he is a quiet and strong Jaffa alien who defects from his
position as the First Prime of the Goa'uld Apophis. He joins SG-1 after the pilot episode in hopes of leading his race to freedom. Despite succeeding in this goal at the end of season 8, he remains a member of SG-1 until the end of the series.
Janet Fraiser
Teryl Rothery plays the role of Captain Janet Fraiser, the resident Chief Medical Officer of the SGC. She is
responsible for maintaining the health of the SG teams, as well as the SGC's support staff and base personnel. On many occasions, she also cares for the health of alien refugees to Earth, including Goa'uld symbiotes. Dr. Fraiser is
killed by a staff-weapon blast in season 7's "Heroes" during an off-world medical emergency.
George Hammond
Don S. Davis plays the role of George Hammond He is a United States Air Force Major General who is head of Stargate Command in the first seven seasons. Besides recurring in seasons 8 through 10 of Stargate SG-1, he appears in season 1 of Stargate Atlantis. Davis died from a heart attack in June 2008, making his appearance in Stargate: Continuum his last
Cameron Mitchell
Ben Browder plays the role of Cameron Mitchell A United States Air Force Lieutenant Colonel who is assigned as the new commanding officer of SG-1 at the beginning of season 9 and commands SG-1 with Lt. Col. Carter's assistance until the end of season 10. He is promoted to Colonel between his appearances in Stargate: The Ark of Truth and Stargate: Continuum.
Jonas Quinn
Corin Nemec plays the role of Jonas Quinn A humanoid alien and scientist from the country of Kelowna on the planet Langara. Daniel sacrifices his life at the end of season 5 in an attempt to save Kelowna, but reaction of the Kelownan leaders causes Jonas to turn his back on Langara. Jonas is a fast learner and fills Daniel's empty spot on SG-1 in season 6. Following Daniel's return, Jonas returns to his planet and remains a recurring character in season 7.
Henry Landry
Beau Bridges plays the role of Henry Landry is a United States Air Force Major General and the commander of Stargate Command in seasons 9 and 10. He is the estranged father of the SGC's medical officer Carolyn Lam and appears in both Stargate films and in seasons 2 and 3 of Stargate Atlantis.
Vala Mal Doran
Claudia Black plays the role of Vala Mal Doran A con artist from an unnamed planet and a former human host to the Goa'uld Qetesh. Her first appearance is in season 8's "Prometheus Unbound" where she steals the Prometheus to trade for weapons grade Naqudah. In her recurring role in season 9, she and Daniel unintentionally set off the new Ori threat. She joins SG-1 after giving birth to the new leader of the Ori at the beginning of season 10.