Richard Thomas is best known for playing John-Boy on the ‘70s drama series “The Waltons.” Now, he’s playing one of literature and film’s most beloved characters, Atticus Finch, in Aaron Sorkin’s touring production of “To Kill a Mockingbird.” Richard talks to Tom about taking on this much-loved role, why he thinks the story is so timeless, and why he doesn't mind if you shout out “Goodnight, John-Boy” at curtain call.