Amanda Tapping

Amanda Tapping (born 28 August 1965) is a British-Canadian actress and director. She is best known for portraying Samantha Carter in the Canadian–American military science fiction television series ''Stargate SG-1,'' ''Stargate Atlantis,'' and ''Stargate Universe.'' She also starred as Helen Magnus in the science fiction-fantasy television series ''Sanctuary''. Provided by Wikipedia