In my mind, Mike Patton is absolutely one of the best parts of The Darkness videogames. Possibly even the best. It's like he has a demon living inside of him that's only there to help him produce sounds no human should be able to.
Since The Darkness II has been out for a couple of weeks now, 2K Games put out a fun behind-the-scenes video showcasing Patton's voice acting. These things are usually interesting enough to send you on an IMDB spree, if nothing else, but this one made me laugh. A little too much.