Richard Dean Anderson an American television and film actor, producer and composer. He began his television career in 1976 as Dr. Jeff Webber in the American soap opera series General Hospital, then rose to prominence as the lead actor in the television series MacGyver (1985–1992). Anderson later appeared in films, including Through the Eyes of a Killer (1992), Pandora's Clock (1996) and Firehouse (1997).Stargate is a military science fiction franchise, initially conceived by Roland Emmerich and Dean Devlin. The first film in the franchise was simply titled Stargate. It was originally released on October 28, 1994 by Metro-Goldwyn-Mayer and Carolco, and became a worldwide hit grossing nearly $200 million (USD) worldwide. Three years later, Canadian Brad Wright and Jonathan Glassner created a television series entitled Stargate SG-1 as a sequel for the film.
In 1997, Anderson returned to television as the lead actor of the series Stargate SG-1, a spin-off of the 1994 film Stargate. He played the lead from 1997–2005 and had a recurring role from 2005–07. Since 1997, the only film Anderson has starred in is Stargate: Continuum released in 2008 as a spin-off film after Stargate SG-1 was cancelled in 2007. He appears in the follow-up Stargate series Stargate: Atlantis and Stargate: Universe (as Lieutenant GeneralJack O'Neill).
In addition to film and television, the Stargate franchise has expanded into other media, including books, video games, and comic books. These supplements to the film and television series have resulted in significant development of the show's fictional universe and mythology. In 2008, the films Stargate: The Ark of Truth and Continuum were released direct-to-DVD, which in total grossed over 21 million in the United States. In 2002, the franchise's first animated series, Stargate Infinity, was released as an introduction to the Expanded Universe. In 2004, Stargate Atlantis was released as a spin off from Stargate SG-1 and a new Stargate spin off series entitled Stargate Universe premiered on October 2, 2009.