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 Bill Quinn Guest Star Bill Erwin Guest Star Casey Tibbs Guest Star Harry Pugh Guest Star Randolph Dobbs Guest Star Hilliard Livingston Guest Star Eddie Rayden Guest Star Paul Fix Guest Star Beulah Bondi Guest Star Morgan Woodward Guest Star Richard Hatch Guest Star Lindsay V. Jones Guest Star Mills Watson Guest Star Lee Rich Executive Producer Robert L. Jacks Producer Ralph Senensky Director