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 short-lived crime drama series Kaz.
Leibman also acted in films such as Where's 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 (2013–2016) and for playing Dr. Leonard Green, Rachel's rich, short-tempered father, on the sitcom Friends (1996–2004).
Description above from the Wikipedia article Ron Leibman, licensed under CC-BY-SA, full list of contributors on Wikipedia.
2010
as Warren Dunning
2009
as Ron Cadillac (voice)
2009
as Ron Cadillac (archive sound) (uncredited)
2004
as Dr. Cohen
2002
as Lenny
2002
as Lou Schoichet
2002
as Avram Herskowitz
1999
as Stan Villani
1999
as Dr. Lior Plepler
1998
as Stan Peterson
1998
as Barry the Book
1997
as Harry Shondor
1997
as Morgenstern
1997
1996
as Rabbi / Old Man (voice)
1995
as Allen Rush
1994
as Leonard Green
1993
1991
as Detective Al Burkhardt
1990
as Paul Kopell
1990
as Defense Attorney Barry Nathanson
1988
as Defence Attorney
1988
as David Reardon
1988
1987
as Sam Greene
1986
as Morris Huffner
1986
as Jerry Brenner
1985
as Joey Caruso
1985
as Larry Price
1984
as Roland Trent
1984
as Darryl Heyward
1984
as Freddie Ugo
1983
as Leo Jessup
1983
as Dave Davis
1981
as Captain Esteban
1981
as Stan Rivkin
1980
as Himself
1980
as Major Vaughn Liceman (uncredited)
1979
as Reuben
1978
1978
as Detective Louis Kazinsky
1976
as Rudy Montague
1975
as Roman Grey
1974
as David Greenberg
1973
as Mike
1973
1972
as Paul Lazzaro
1972
as Stanley Murch
1970
as Sidney Hocheiser
1961
as Carmatti
1956
as Self - Presenter
1956
as Self - Winner/Performer