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 Ronnie Claire Edwards Corabeth Godsey Actor Mary Jackson Emily Baldwin Actor Helen Kleeb Mamie Baldwin Actor Tom Bower Guest Star John Hiestand Guest Star Vickery Turner Guest Star Melody Thomas Scott Guest Star Arthur Franz Guest Star Michael Richardson Guest Star Robert Gooden Guest Star Lee Rich Executive Producer Earl Hamner Jr. Executive Producer Andy White Producer Larry Dobkin Director