James Wesley Marsters is an American actor, musician and comic book writer. He is best known for his role as the British vampire Spike in The WB series Buffy the Vampire Slayer and its spin-off, Angel. Since then, he has played the alien supervillain Brainiac on the Superman-inspired series Smallville, Captain John Hart on Torchwood and terrorist Barnabas Greeley in Syfy's Caprica. He appeared in a supporting role in the film P.S. I Love You, as Victor Hesse in the 2010 Hawaii Five-0 reboot, and Victor Stein in the Marvel series Runaways.