Richard Dysart

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.

Cast

Back to the Future Part III
Barbwire Salesman
The Thing
Dr. Copper
Being There
Dr. Robert Allenby
Mask
Abe
The Day of the Locust
Claude Estee
Prophecy
Trevor Isley
The Hospital
Dr. Welbeck
Pale Rider
Coy LaHood
Warning Sign
Dr. Nielsen
The Terminal Man
Dr. John Ellis
Day One
President Harry S. Truman
Truman
Henry L. Stimson
The Hindenburg
Lehman
Bogie
Jack Warner
The Autobiography of Miss Jane Pittman
Master Bryant
Proteus: A Nineteenth Century Vision
The Ancient Mariner (voice)
An Enemy of the People
Aslaksen
It Happened One Christmas
Peter Bailey
Six Against the Rock
Warden James Johnston
The Sporting Club
Spengler
The Lost Man
Barnes
Malice in Wonderland
Louis B. Mayer
Your Alcohol I.Q.
Self
Jay Leno's Family Comedy Hour
Self
First, You Cry
Dr. Brennerman
Meteor
Secretary of Defense
People vs. Jean Harris
Judge Russell R. Leggett
Moving Target
Arthur Cambridge
The Ordeal of Dr. Mudd
Edwin Stanton
The Crazy World of Julius Vrooder
Father
Petulia
Motel Receptionist
Everything Is Terrible! The Movie
Self (archive footage)
Panther
J. Edgar Hoover
The Court-Martial of George Armstrong Custer
President Ulysses S. Grant
The Falcon and the Snowman
Dr. Lee
Riding with Death
Leonard Driscoll
Blood & Orchids
Harvey Koster
Missing Children: A Mother's Story
Hunter Burgess
L.A. Law: The Movie
Leland McKenzie
A Child Is Missing
Riley Hallihan
The Last Days of Patton
Gen. Dwight D. Eisenhower
Marilyn & Bobby: Her Final Affair
J. Edgar Hoover
Love with the Proper Stranger
Accountant (uncredited)
Mickey's 60th Birthday
Leland McKenzie
Wall Street
Cromwell
Churchill and the Generals
Gen. Dwight D. Eisenhower
Hard Rain
Henry Sears
Bitter Harvest
Dr. Morton Freeman
Shadow Game
Jerry Arnst
L.A. Law: Pilot
Leland McKenzie
Corwin
Self
Todd McFarlane's Spawn 2
Cogliostro
Spawn 3: The Ultimate Battle
Cogliostro