James Metcalfe "Jamie" Campbell Bower (born 22 November 1988 in London, England) is a British actor, singer, and model. His first screen role was Anthony Hope in Tim Burton's 'Sweeney Todd", he also starred as Caius in The Twilight Saga and as the young Gellert Grindelwald in Harry Potter and the Deathly Hallows – Part 1. In 2013, he portrayed Jace Wayland in The Mortal Instruments: City of Bones. Jamie is also the lead vocalist, guitarist and founding member of Counterfeit, a band formed in 2015 in London, UK.