Though he may never have hit megastar status, Robert Patrick has been a stalwart presence in Hollywood ever since his biggest role as the T-1000 in James Cameron's seminal "Terminator 2: Judgment Day.

Stargate: Atlantis originally aired on the Sci-Fi Channel and The Movie Network, starting in 2004. The series features several familiar faces, including Joe Flanigan (John Sheppard), David Hewlett (Dr ...