Michael Landon Charles Ingalls Actor, Executive Producer, Writer, Director Karen Grassle Caroline Ingalls Actor Melissa Gilbert Laura Ingalls Wilder Actor Melissa Sue Anderson Mary Ingalls Kendall Actor Richard Bull Nels Oleson Actor Katherine MacGregor Harriet Oleson Actor Alison Arngrim Nellie Oleson Dalton Actor Jonathan Gilbert Willie Oleson Actor Kevin Hagen Dr. Baker Actor Dabbs Greer Rev. Robert Alden Actor Merlin Olsen Jonathan Garvey Actor Patrick Laborteaux Andy Garvey Actor Hersha Parady Alice Garvey Actor Matthew Labyorteaux Albert Ingalls Actor Linwood Boomer Adam Kendall Actor Don "Red" Baker Jud Larabee, Jud Larrabee, Rufe Parsons Actor Karl Swenson Lars Hanson Actor Cliff Emmich John Bevins Guest Star Katherine Woodville Bess Bevins Guest Star Julie Anne Haddock Amelia Bevins Guest Star Lindsay Greenbush Carrie Ingalls Actor Sidney Greenbush Carrie Ingalls Actor Brenda Turnbaugh Grace Ingalls Actor Wendi Turnbaugh Grace Ingalls Actor Walker Edmiston Dr. Moore Guest Star David Hooks Mr. Ames Guest Star Sam Edwards Postman Guest Star Hap Lawrence Smitty Guest Star Michelle Downey Susan 'Sue' Goodspeed Guest Star Ivan Wideman Thomas Guest Star David Murdock Apple Vendor Guest Star