Joseph Jason Namakaeha Momoa (; born August 1, 1979) is an American actor. He made his acting debut as Jason Ioane on the syndicated action drama series Baywatch: Hawaii (1999–2001), which was followed by portrayals of Ronon Dex on the Syfy science fiction series Stargate Atlantis (2005–2009), and Khal Drogo in the first two seasons of the HBO...