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 Matt Clark Mr. Hennessey Guest Star James Gammon Zack Roswell Guest Star Jimmy Davila Harold Beasley Guest Star Marjorie Morley Eaton Mrs. Crofut Guest Star Todd Miller Charlie Guest Star Mary Betten Mrs. Littlefield Guest Star Donna Sanders Beth Ann Littlefield Guest Star James Jeter Guest Star Sam Javis Guest Star Charles Tyner Graham Foster Guest Star Lee Rich Executive Producer Robert L. Jacks Producer John McGreevey Writer