Danny Trejo

For over two decades, casting agents looking for an actor who could convincingly portray the baddest of the bad went to one man - Danny Trejo, whose muscular, tattooed frame and leathery face bespoke volumes about violence and vice in films including "Heat" (1995), "Desperado" (1995) and "Machete" (2010). The conviction behind his performances was due in part to his own life, which was spent partly behind bars; after his release, a chance …