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 Bonnie Bartlett Grace Edwards Actor Lindsay Greenbush Carrie Ingalls Actor Sidney Greenbush Carrie Ingalls Actor John Howard Hiram Potter Guest Star Beth Howland Clerk Guest Star Gracia Lee Mrs. Bell Guest Star Arthur Heinemann Writer William F. Claxton Director