Question: Jason Momoa stars as Khal Drogo in a show based on a fantasy novel written by which author ?
Sentence (from "Jason Momoa"): He is known for his television roles as Ronon Dex on the military science fiction television series "Stargate Atlantis" (2004–2009) and as Khal Drogo in the HBO fantasy television series "Game of Thrones" (2011–2012).
Relevant evidence: Yes