In 2007 he starred in the TV series The Life and Times of Vivienne Vyle and Ronni Ancona & Co. His best known role is as Lord Varys on the HBO television drama series Game of Thrones since 2011. Hill starred as Edward Darby in the TV series Suits in 2013. He has also starred in the movies Crossmaheart, Intermission, Whatever Works, Perrier’s Bounty, Salmon Fishing in the Yemen, Whole Lotta Sole, Keith Lemon: The Film, Shooting for Socrates, and Two Down. Hill has starred in many stage productions mainly in London and Belfast. For his role on Game of Thrones he was nominated for a Screen Actors Guild Awards for Outstanding Performance by an Ensemble in a Drama Series.