Q: One of our favorite movie actors, Walter Brennan, walked with a limp. How did he acquire this? — M & C.M., Porterville, Calif.

A: Walter Brennan, who entered the world on July 25, 1894, in Lynn, Mass., walked with a limp not because of an accident but rather as a suggestion made by Jack Foley, the famous sound-effects man and his good friend. Foley suggested he put a rock in his shoe. Brennan frequently played the part of an older man, in part because of the loss of many of his teeth, thinning hair, and raspy voice. Brennan appeared in more than 230 films and television roles. A three-time Oscar winner, he is considered one of the finest character actors in Hollywood history. He died of emphysema in 1974.