who is the guy that plays mayhem on the commercials
He is known for his role as Ryan O'Reily on the HBO prison drama Oz, and has also appeared on such television series as Rescue Me, 30 Rock, and Law & Order: Special Victims Unit, as well as the character ``Mayhem'' in a series of Allstate Insurance commercials. Winters co-starred with Josh Duhamel in one season of the CBS Network cop drama series Battle Creek.
Dean Winters