Walter Brennan (1894–1974) was an American character actor and the first person in history to win three Oscars for Best Supporting Actor — a milestone he achieved early in his career, long before many legends earned even one. After losing most of his teeth in a 1932 on-set accident, he used the ability to remove his dentures to transform himself into older, rougher characters, even while still in his 40s. His popularity was so great that studios often rewrote scripts just to give him more lines.

When you pull a gun kill a man - My Darling Clementine (1946)