"I said yes right away" to playing Lucifer on the popular series, Pellegrino says.

"I was really happy to discover different mythology about the devil. In this show, they turned it upside down on its head and they made Lucifer’s appeal to Nick so truthful and so gut wrenchingly clear... Anybody, even a man or woman of faith, could sit down with that pitch and go, 'Wow. You have a point.'"



The way Pellegrino sees it, the Prince of Darkness really just has some colossal family drama.

"'Supernatural' is all about the brothers, their love for each other, their loyalty to each other. This was kind of the same thing, a family betrayal where one person refuses to go along with an authority and is kicked out, banned forever for being different, having a different point of view… and standing for something."

http://tvline.com/gallery/memories-from-the-set-mark-pellegrino/#!11/memset_pellegrino_supernatural/

He played a pretty bad character on the show but he was good at it.
He was also on Being Human. He played Bishop, a very bad vampire.