This is a list of Jack O'Neill's appearances in Stargate SG-1, Stargate: Atlantis, Stargate Universe, and the movies. Jack O'Neill and Daniel Jackson are the only two characters to appear in the pilot episodes of all three Stargate series (Stargate SG-1, Stargate: Atlantis and Stargate Universe).

Stargate SG-1Edit

Stargate AtlantisEdit

Stargate UniverseEdit


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