Bill Kelliher (born 23 March 1971) is an American musician. He is the rhythm guitarist of the heavy metal band Mastodon.
In Game of Thrones, he portrayed a Wildling in the episode "Hardhome" alongside his bandmates Brent Hinds and Brann Dailor.
He performs on the song "White Walker" on Catch the Throne.
Gallery
Template:Season five credits