Special Guest Stars Richard Dean Anderson as Jack O'Neill Claudia Black as Vala Mal Doran Guest Stars Gary Jones as Sgt. Walter Harriman Bill Dow as Dr. Bill Lee Obi Ndefo as Rak'nor Matthew Walker as Merlin Co Starring Martin Christopher as Kevin Marks Robert Clarke as Scientist Penelope Corrin as Dr. Lindsay Scott Owen as Sgt. Mackenzie Claude Knowlton as Doctor Tyler McClendon as Lt. Adam Banks Mar Andersons as Air Force Official Michael Jonsson as Pilot Redmond Alistair Abell as Ian Patterson Jason Benson as Dave Donna Carroll White as Wendy Mitchell Sean Arnfinson as Military Candidate Wendy Russell as Nurse Uncredited Hugo Steele as Jaffa Guard Mario Ferrente as SF Guard Justin Doran as SF Guard Paul Jarrett as SG-5 Member Rob Hayter as Marine
