Michael Landon Charles Ingalls Actor, Executive Producer Karen Grassle Caroline Ingalls Actor Melissa Gilbert Laura Ingalls Wilder Actor Melissa Sue Anderson Mary Ingalls Kendall Actor Karl Swenson Lars Hanson 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 Charlotte Stewart Eva Beadle Simms Actor Victor French Mr. Isaiah Edwards Actor Ted Gehring Ebenezer Sprague Actor Lindsay Greenbush Carrie Ingalls Actor Sidney Greenbush Carrie Ingalls Actor Gregory Walcott Slick McBurney Guest Star Karl Lukas Jebediah Mumfort Guest Star Bonnie Bartlett Grace Snider Guest Star June Dayton Margaret Mumfort Guest Star Chuck Hayward Cosby Guest Star Ed Friendly Executive Producer B.W. Sandefur Writer William F. Claxton Director