Michael Learned Olivia Walton Actor Ralph Waite John Walton Actor, Director 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 John Crawford Sheriff Ep Bridges Actor Mary Jackson Emily Baldwin Actor Lynn Hamilton Guest Star Robert Donner Guest Star Helen Kleeb Mamie Baldwin Actor Rachel Longaker Guest Star Tom Bower Guest Star Hal Williams Guest Star Peter Fox Guest Star Lee Rich Executive Producer Earl Hamner Jr. Executive Producer Andy White Producer Larry Dobkin Director Harry Harris Director Ralph Senensky Director Philip Leacock Director Gwen Arner Director Walter Alzmann Director Tony Brand Director Richard Chaffee Director