Place of Birth: New York City, New York, USABirthday: 20 July 1964Bio: Dean Winters (born July 20, 1964) is an American actor, who is known for his roles as Bobby on the YouTube series Wayne, Detective Brian Cassidy on Law & Order: SVU, Detective Russ Agnew on Battle Creek, \'The Vulture\' Detective Pembroke on Brooklyn Nine-Nine, Charley Dixon on FOX\'s Terminator: The Sarah Connor Chronicles, Dennis Duffy on NBC\'s 30 Rock, Johnny Gavin on FX\'s Rescue Me, Ryan O\'Reily on HBO\'s Oz. He also portrays \"Mayhem\" in Allstate commercials.