“
When Walter Brennan was asked how close in character he was to Amos McCoy, he replied, “Sure, I’m a mean old so-and-so.” More to the point, though, Brennan believed in Grandpa’s “godliness, a reverence for his family.” It was a good description of himself, although he did not discuss his faith or philosophy with his fellow actors. When I asked Kathleen Nolan if she knew that Brennan was a devout Catholic, she was startled. “We never, ever, talked about religion,” she said.
”
”
Carl Rollyson (A Real American Character: The Life of Walter Brennan (Hollywood Legends))