An intensely physical performer whose masculine, ethnic looks brought to mind such classic Hollywood leading men as Paul Muni, John Garfield and Anthony Quinn, Jon Bernthal traded in an early opportunity to play professional baseball for the life of a working actor. The Washington, D.C.-born Bernthal honed his craft in regional and off-Broadway theatre on both coasts and paid his dues with lead roles in low-budget, independent films and character bits on such weekly TV series as "Boston Legal" (ABC, 2004-08), "CSI: Miami" (CBS, 2002-2012) and "Law & Order: Special Victims Unit" (NBC, 1999- ). The dark-haired actor hit his stride with a string of high-profile supporting performances in Oliver Stone's "World Trade Center" (2006), Roman Polanski's "The Ghost Writer" (2010) and the HBO miniseries "The Pacific" (2010). Disappointed by the failure of two network series in which he played principal roles, Bernthal hit the jackpot when he joined the cast of the AMC cable miniseries "The Walking Dead." The live-action comic book adaptation proved such a hit with viewers in the fall of 2010, that it was renewed for a second season after only two episodes had aired. With a higher caliber of scripts being offered him and a returning role in a highly-regarded, record-breaking cable series, Jon Bernthal left behind the broad Italian and Spanish caricatures that were once his stock-in-trade for the fast track to a bright and promising career as a Hollywood headliner.