Richard Thomas John Boy Walton Actor Ralph Waite John Walton Actor Michael Learned Olivia Walton Actor Will Geer Zeb "Grandpa" Walton Actor Ellen Corby Esther "Grandma" Walton Actor Judy Norton Mary Ellen Walton Willard Actor David W. Harper Jim-Bob Walton Actor Kami Cotler Elizabeth Walton Actor Jon Walmsley Jason Walton Actor Mary Beth McDonough Erin Walton Actor Eric Scott Ben Walton Actor Joe Conley Ike Godsey Actor Ronnie Claire Edwards Corabeth Godsey Actor John Crawford Sheriff Ep Bridges Actor Helen Kleeb Mamie Baldwin Actor Mary Jackson Emily Baldwin Actor Earl Hamner Jr. Executive Producer Lee Rich Executive Producer