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 Merlin Olsen Jonathan Garvey Actor Patrick Laborteaux Andy Garvey Actor Hersha Parady Alice Garvey Actor Dick DeCoit Cass McCray Guest Star Michael Morgan Patrick Guest Star Lindsay Greenbush Carrie Ingalls Actor Sidney Greenbush Carrie Ingalls Actor Steve Eastin Shell game barker Guest Star Dick Armstrong Pickpocket Guest Star Sandy Rosenthal Chair Dump Barker Guest Star Arthur Heinemann Writer William F. Claxton Director