<Tr> <Th> Years active </Th> <Td> 2007--present </Td> </Tr> <Tr> <Th> Parent (s) </Th> <Td> David Bower Anne Roseberry </Td> </Tr> <P> James Metcalfe Campbell Bower (born 22 November 1988) is an English actor, singer, and model . He is best known for his roles as Anthony Hope in Sweeney Todd: The Demon Barber of Fleet Street, Caius in The Twilight Saga, King Arthur in the Starz series Camelot, the young Gellert Grindelwald in Harry Potter and the Deathly Hallows--Part 1, Jace Wayland in The Mortal Instruments: City of Bones and playwright Kit Marlowe in the short - lived series Will . </P> <P> Jamie is also the lead vocalist, guitarist and founding member of Counterfeit, a band formed in 2015 in London, UK . </P>

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