Christian Stolte is an American character actor. He portrayed corrections officer Keith Stolte on the TV series Prison Break and Charles Makley in the film Public Enemies. He starred as chief appraiser David Kim Parker in The Onion's web series Lake Dredge Appraisal. He also portrayed Clarence Darby in the film Law Abiding Citizen. Stolte's acting career also includes voice over work (or voice acting) with Breathe Bible. He currently portrays Randy McHolland (Mouch) in the NBC series Chicago Fire.