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