Complex sentence: He played Will Scarlet in the first two seasons of the BBC drama "Robin Hood", which began in 2006, and starred in season 1 of 2011's "Game of Thrones" as Viserys Targaryen.
Split into simpler sentences: He played Will Scarlet in the first two seasons of the BBC drama "Robin Hood" which began in 2006. Most recently he starred in 2011's "Game of Thrones" as Viserys Targaryen.