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 Don Matheson Guest Star Glen Gordon Guest Star Tim Haldeman Guest Star Stuart Taylor Guest Star Barbara Litsky Guest Star Richard Masur Guest Star Jacques Aubuchon Guest Star Dennis Redfield Guest Star Tom Lacy Guest Star Lee Rich Executive Producer Robert L. Jacks Producer Harry Harris Director