James Marsters

James Marsters (born August 10, 1962) is an american actor and musician, that played Don Stark in Season 7's episode Shut Up, Dr. Phil of Supernatural

He is mostly known for his roles as Spike in Buffy, The Vampire Slayer and it's spin-off Angel and as Brainiac in Smallville.

Marsters has appeared in series like Torchwood, Numb3rs, Lie to Me, Without a Trace, Hawaii Five-O and Caprica.