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 Robert Sorrells Guest Star Garry Walberg Guest Star Gerald McRaney Guest Star Julie Rogers Guest Star Gene Massey Jr. Guest Star Bruce Reasman Guest Star Kathy Cronkite Guest Star Melissa Mahoney Guest Star Paul Jenkins Guest Star Granville Van Dusen Guest Star Mayf Nutter Guest Star Lee Rich Executive Producer Robert L. Jacks Producer Harry Harris Director