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.
Back to the Future Part III
as Barbwire Salesman
Age 61 (now 86)
Everything Is Terrible! The Movie
as Self (archive footage)
Age 80 (now 86)
Proteus: A Nineteenth Century Vision
as The Ancient Mariner (voice)
Age 74 (now 86)
Marilyn & Bobby: Her Final Affair
as J. Edgar Hoover
Age 64 (now 86) Back to the Future Part III
as Barbwire Salesman
Age 61 (now 86)
The Last Days of Patton
as Gen. Dwight D. Eisenhower
Age 57 (now 86)
Missing Children: A Mother's Story
as Hunter Burgess
Age 53 (now 86)
Churchill and the Generals
as Gen. Dwight D. Eisenhower
Age 50 (now 86)
The Court-Martial of George Armstrong Custer
as President Ulysses S. Grant
Age 48 (now 86)
The Autobiography of Miss Jane Pittman
as Master Bryant
Age 45 (now 86)
The Crazy World of Julius Vrooder
as Father
Age 45 (now 86)
Love with the Proper Stranger
as Accountant (uncredited)
Age 34 (now 86)
Batman: The Animated Series
as Dr. Bartholomew (voice)
Age 63 (now 86)
Gathering insights...
Also Known As
Richard A. Dysart, Richard Allen Dysart
IMDB
nm0246004