Stephen Moyer (born Stephen John Emery; 11 October 1969) is an English film and television actor and director who is best known as vampire Bill Compton in the HBO series True Blood. He was born in Brentwood, Essex and attended St Martin's, a comprehensive school in Hutton, Essex. His first television role was in 1993 as Philip Masefield in the TV adaptation of the play Conjugal Rites, written by actor/playwright Roger Hall.

This was followed by the television film Lord of Misrule, filmed in Fowey, Cornwall, which also featured Richard Wilson, Emily Mortimer and Prunella Scales. In 1997, Moyer made his big-screen debut landing the lead role in the film adaptation of the long-running comic strip Prince Valiant by Hal Foster, working alongside Ron Perlman and Katherine Heigl. Beginning 2 October 2017, he began his new role as the lead, Reed Strucker in the new Fox series The Gifted.