This article is a List of Stargate SG-1 characters, from the 1997-2007 science fiction television series by a joint Canadian-American production team, adapted from the 1994 film Stargate. Over its decade of existence, Stargate SG-1 developed an extensive and detailed backdrop of diverse characters. Many of the characters are members of alien species discovered while exploring the galaxy through the Stargate, although there are an equal number of characters from offworld human civilizations. While Stargate SG-1, Stargate Atlantis and Stargate Universe are separate shows, they take part in the same fictional universe, so no character is internally show-specific.
