
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).
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Garden State
2004 · as Dr. Cohen

The Hot Rock
1972 · as Stanley Murch

Slaughterhouse-Five
1972 · as Paul Lazzaro

Auto Focus
2002 · as Lenny

Norma Rae
1979 · as Reuben

Just the Ticket
1998 · as Barry the Book

Up the Academy
1980 · as Major Vaughn Liceman (uncredited)

Night Falls on Manhattan
1997 · as Morgenstern

Where’s Poppa?
1970 · as Sidney Hocheiser

Don King: Only in America
1997 · as Harry Shondor

A Little Help
2010 · as Warren Dunning

Rhinestone
1984 · as Freddie Ugo

Personal Velocity
2002 · as Avram Herskowitz

Zorro, The Gay Blade
1981 · as Captain Esteban

Twilight Theater II
1982 · as Self- Guest

The Super Cops
1974 · as David Greenberg

Romantic Comedy
1983 · as Leo Jessup

Christmas Eve
1986 · as Morris Huffner