John Zderko: John Zderko. Actor: The Player. John Zderko was an actor, known for The Player (2015), 9-1-1: Lone Star (2020) and The Mentalist (2008). He died on 19 May 2022 in Los Angeles, California, USA.
Known For: The Player (Businessman), 9-1-1: Lone Star (Brother Bob), The Mentalist (Inner Circle Member), Criminal Minds (Dominic Maguire)