Every once and a while, an actor appears in a role that seems tailor-made. For Wentworth Miller, that role came when he was cast as young Coleman Silk in “The Human Stain” (2003), a race drama about a man (the older version played by Sir Anthony Hopkins) hiding the true nature of his identity—one born from a white mother and black father. Miller’s own background was a mirror image of the character, which naturally gave him an edge on the competition despite his sparse resume. Prior to his feature debut, Miller paid his dues in small unforgiving roles on various television shows.