Joseph Jason Namakaeha Momoa
He (born August 1, 1979) is an American actor, writer, director, producer and model. He is known for his television roles as Ronon Dex on the military science fiction television series Stargate Atlantis (2004–2009), Khal Drogo in the HBO fantasy television series Game of Thrones (2011–2012), and as Declan Harp in the Netflix series Frontier (2016–present).