
Acting
Walter Thomas Huston (April 5, 1883 – April 7, 1950) was a Canadian actor and singer. Huston won the Academy Award for Best Supporting Actor for his role in The Treasure of the Sierra Madre (1948), directed by his son John Huston. He is the patriarch of the four generations of the Huston acting family, including his son John, grandchildren Anjelica Huston, Danny Huston, Allegra Huston, and great-grandchild Jack Huston.
Description above from the Wikipedia article Walter Huston, licensed under CC-BY-SA, full list of contributors on Wikipedia.

A Compassionate Spy
as Self (archive footage) (uncredited)

Thou Shalt Not: Sex, Sin and Censorship in Pre-Code Hollywood
as Various Roles (archive footage)
Checking Out: Grand Hotel
as Self (archive footage)

Discovering Treasure: The Story of 'The Treasure of the Sierra Madre'
as Howard (archive footage)
Why We Fight: World War II: The Battle of China / War Comes to America
as Narrator

Bogart: The Untold Story
as Self (archive footage)

Joan Crawford: Always the Star
as Self (archive footage)

John Huston: The Man, the Movies, the Maverick
as Self (archive footage)

Going Hollywood: The '30s
as (archive footage)

Hollywood Out-takes and Rare Footage
as Self (archive footage) (uncredited)
Dodsworth
1936