Biography:

Robert J. Zdarsky (June 3, 1950 – March 30, 2015), better known by his stage name Robert Z'Dar, was an American actor and film producer, best known for his role as officer Matt Cordell in the cult horror film Maniac Cop and its two sequels. Due to his unique facial structure, he is often referred to as "The Chin". Description above from the Wikipedia article Robert Z'Dar, licensed under CC-BY-SA, full list of contributors on Wikipedia.