Walter Thomas Huston 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, 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 and Danny Huston, as well as great-grandchild Jack Huston. The family has produced three generations of Academy Award winners: Walter, his son John, and granddaughter Anjelica.

The Academy Award for Best Supporting Actor is an award presented annually by the Academy of Motion Picture Arts and Sciences (AMPAS). It has been awarded since the 9th Academy Awards to an actor who has delivered an outstanding performance in a supporting role in a film released that year. The award is traditionally presented by the previous year's Best Supporting Actress winner. In lieu of the traditional Oscar statuette, supporting acting recipients were given plaques up until the 16th Academy Awards, when statuettes were awarded to each category instead.