Earl Hamner Jr. Creator Richard Thomas John Boy Walton Actor Ralph Waite John Walton Actor, Director 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 Mary Jackson Emily Baldwin Actor John Crawford Sheriff Ep Bridges Actor Victor Izay Dr. Matthew Vance Guest Star Helen Kleeb Mamie Baldwin Actor Mariclare Costello Guest Star Cynthia Eilbacher Martha Rose Guest Star David Doremus G.W. Haines Guest Star John Ritter Guest Star Lee Rich Executive Producer Nigel McKeand Writer Robert L. Jacks Producer Joanna Lee Writer Ralph Senensky Director John McGreevey Writer Dale Eunson Writer Robert Malcolm Young Writer Carol Evan McKeand Writer Lionel E. Siegel Writer Peter L. Dixon Writer Philip Leacock Director Jack Shea Director Harry Harris Director Lee Philips Director Alf Kjellin Director Tony Kayden Writer Sarah Dixon Writer