T'akaya Native of PXY-887 Possessor of great telekinetic and other powers. Worshipped as a great spirit by the Salish Indians her people revere and protect. |  | Played by: Christina Cox | From episode: 213   |  
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          Tanner, Peter (Doctor) Fugitive alien and faux psychologist   |  | Played by: Robert Lewis | From episode: 411  512   |  
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          Tobias, Claire (Lt.) NID operative under the command of Col. Maybourne Based off-world as part of a team covertly obtaining contraband technology from the Asgard, the Tollan and other races. Captured and imprisoned as a result of Col. Jack O'Neill's sting operation. |  | Played by: Linnea Sharples | From episode: 318   |  
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          Tonane Native of PXY-887, a wise Salish Indian   |  | Played by: Rodney A Grant | From episode: 213   |  
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          Trofsky (Major General) "Future" SGC officer and Jaffa in the service of Hathor   |  | Played by: Tom Butler | From episode: 222  301   |  
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          Tyler (Lt.) Seemingly the fifth member of SG-1 but in fact an alien hunted by the Goa'uld   |  | Played by: Dion Johnstone | From episode: 504   |  
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