Guest Stars Paul McGillion as Dr. Carson Beckett Craig Veroni as Dr. Peter Grodin Christopher Heyerdahl as Halling Andee Frizzell as The Keeper Co Starring James Lafazanos as Male Wraith Dean Marshall as Sgt. Bates Boyan Vukelic as Sgt. Stackhouse Reece Thompson as Jinto Casey Dubois as Wex Dan Payne as Wraith Warrior Stefano DiMatteo as Toran Geoff Redknap as Old Colonel Sumner