
Actor
Richard Dysart
Born 1929 · Boston, Massachusetts, USA
Richard Allen Dysart (March 30, 1929 – April 5, 2015) was an American actor. He is best known for his role as senior partner Leland McKenzie in the television series L.A. Law (1986–1994), for which he won a 1992 Primetime Emmy Award as Outstanding Supporting Actor in a Drama Series after four consecutive nominations. In film, he held supporting roles in The Hospital (1971), Being There (1979), The Thing (1982), Mask (1985), Pale Rider (1985) and Wall Street (1987). Description above from the Wikipedia article Richard Dysart, licensed under CC-BY-SA, full list of contributors on Wikipedia.
Acting

The Thing
Dr. Copper · 1982

Back to the Future Part III
Barbwire Salesman · 1990

Batman: The Animated Series
Dr. Bartholomew (voice) · 1992

Wall Street
Cromwell · 1987

Columbo
Max Duval · 1971

Being There
Dr. Robert Allenby · 1979

Pale Rider
Coy LaHood · 1985

Spawn
Nicholas Cogliostro (voice) · 1997

Mask
Abe · 1985

All in the Family
Russ DeKuyper · 1971

Hard Rain
Henry Sears · 1998

The Falcon and the Snowman
Dr. Lee · 1985

The Hindenburg
Lehman · 1975

L.A. Law
Leland McKenzie · 1986

The Hospital
Dr. Welbeck · 1971

The Day of the Locust
Claude Estee · 1975

Love with the Proper Stranger
Accountant (uncredited) · 1963

Prophecy
Trevor Isley · 1979

Meteor
Secretary of Defense · 1979

Warning Sign
Dr. Nielsen · 1985

Truman
Henry L. Stimson · 1995

Panther
J. Edgar Hoover · 1995

Petulia
Motel Receptionist · 1968

Shadow Game
Jerry Arnst · 1969