Michael Learned Olivia Walton Actor Ralph Waite John Walton Actor Will Geer Zeb "Grandpa" 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 John Crawford Sheriff Ep Bridges Actor Lynn Hamilton Guest Star Ketty Lester Guest Star Tom Bower Guest Star Todd Bridges Guest Star Lee Rich Executive Producer Earl Hamner Jr. Executive Producer Andy White Producer Harry Harris Director