Iwan Rheon is a Welsh actor and musician. He is best known for his roles as Simon Bellamy in the E4 series Misfits (2009-11), Ramsay Bolton in the HBO series Game of Thrones (2013-16), and Mötley Crüe guitarist Mick Mars in the film The Dirt (2019). He has also appeared in the series Vicious, Riviera, and Inhumans.