What author wrote the book series on which an HBO fantasy television series Joseph Jason Namakaeha Momoa starred on was based?
Jason Momoa: Joseph Jason Namakaeha Momoa (born August 1, 1979) is an American actor, model, director, writer, and producer. Khal Drogo: Khal Drogo is a fictional character in the "A Song of Ice and Fire" series of fantasy novels by American author George R. R. Martin, and its television adaptation "Game of Thrones".
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