Ron Leibman October 11 1937 December 6 2019 was an American actor He won both the Tony Award for Best Actor in a Play and the Drama Desk Award for Outstanding Actor in a Play in 1993 for his performance as Roy Cohn in Angels in America Leibman also won a Primetime Emmy Award in 1979 for his role as Martin Kaz Kazinsky in his shortlived crime drama series Kaz Leibman also acted in films such as Wheres Poppa 1970 The Hot Rock 1972 Norma Rae 1979 and Zorro The Gay Blade 1982 Later in his career he became widely known for providing the voice of Ron Cadillac in Archer 20132016 and for playing Dr Leonard Green Rachels rich shorttempered father on the sitcom Friends 19962004 Description above from the Wikipedia article Ron Leibman licensed under CCBYSA full list of contributors on Wikipedia