Robert Patrick

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Robert Patrick
Biographical information
Birth name Robert Hammond Patrick Jr.
Birth date (1958-11-05) November 5, 1958 (age 65)
Marietta, Georgia, USA
Nationality American
Professional information
Occupation Actor
Years active 1987—present
Notable work T-1000 in Terminator 2: Judgment Day
Stargate-related information
Related series Stargate Atlantis
Occupation Actor
Character Colonel Marshall Sumner

Robert Patrick (born November 5, 1958) is an American actor. He played Colonel Marshall Sumner in the Stargate Atlantis pilot episode. He is best known for his characters of the "T-1000" terminator model in Terminator 2: Judgment Day, Agent "John Doggett" in The X-Files, and Colonel "Tom Ryan" in The Unit.


Involvement in the Stargate universe


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Film and Television
Year Title Function Role Notes


External links