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Unnamed Lieutenant Colonel

Colonel Samantha "Sam" Carter, USAF, is a fictional character in the Canadian–American military science fiction Stargate franchise. Played by Amanda Tapping, she appears in all three shows in the franchise: Stargate SG-1, Stargate Atlantis, and Stargate Universe. She was a main character in all ten seasons of Stargate SG-1 (1997–2007). Following a recurring role in Stargate Atlantis for three seasons (2004–07), Carter became a main character in Season 4 of Atlantis (2007–08), and also appeared in the 2008 direct-to-DVD SG-1 films Stargate: The Ark of Truth and Stargate: Continuum. Amanda Tapping accepted a starring role in Sanctuary and appears in only the first and last episodes in Season 5 of Atlantis (2008–09). Carter also appears in two episodes of Season 1 of Stargate Universe.