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 Beaumont Bruestle Guest Star Nicole Henzel Guest Star Jeff Cotler Guest Star Brian Part Guest Star Lynn Carlin Guest Star Sandra Deel Guest Star James Gammon Guest Star James Ray Guest Star Deanna Lund Guest Star William Phipps Guest Star Noble Willingham Guest Star Lee Rich Executive Producer Earl Hamner Jr. Executive Producer Robert L. Jacks Producer Harry Harris Director