 Chanler-Berat will play John Hinckley, Jr., the attempted assassin of President Ronald Reagan.In addition to his theatre work, Chanler-Berat has appeared in a number of supporting roles in television and film, beginning with an episode of "Law and Order" in 2006.Possibly his most notable on screen role is that of Viggo in "Delivery Man," a 2013 movie starring Vince Vaughn.