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 Jon Walmsley Jason Walton Actor Mary Beth McDonough Erin Walton Actor Eric Scott Ben Walton Actor David W. Harper Jim-Bob Walton Actor Kami Cotler Elizabeth Walton Actor Joe Conley Ike Godsey Actor Gary Vinson Guest Star Jimmy Weldon Guest Star Elizabeth Kerr Guest Star Chris Beaumont Guest Star Brad Wilkin Guest Star Michael LeClair Guest Star Ben Wilson Guest Star Kat Sawyer Guest Star Geoffrey Lewis Guest Star Ann Noland Guest Star Herbert Nelson Guest Star Lee Rich Executive Producer Robert L. Jacks Producer Harry Harris Director