Joseph Jason Namakaeha Momoa born August 1 1979 is an American actor and filmmaker He made his acting debut as Jason Ioane on the syndicated action drama series Baywatch Hawaii 19992001 which was followed by his portrayal of Ronon Dex on the Syfy science fiction series Stargate Atlantis 20052009 Khal Drogo in the first two seasons of the HBO fantasy drama series Game of Thrones 20112012 Declan Harp on the Discovery Channel historical drama series Frontier 20162018 and Baba Voss on the Apple TV science fiction series See 2019present Momoa was featured as the lead of the two lattermost series Since 2016 Momoa portrays Arthur Curry Aquaman in the DC Extended Universe DCEU headlining the eponymous 2018 film and its 2023 sequel Momoa also played Duncan Idaho in the 2021 film adaptation of the science fiction novel Dune Description above from the Wikipedia article Jason Momoa licensed under CCBYSA full list of contributors on Wikipedia