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 Matthew Labyorteaux Albert Ingalls Actor Linwood Boomer Adam Kendall Actor Ketty Lester Hester Sue Terhune Actor Dean Butler Almanzo Wilder Actor Lucy Lee Flippin Eliza Jane Wilder Actor Steve Tracy Percival Dalton Actor Donald Petrie Alan Barton Guest Star Donald Hotton Professor Mayfield Guest Star Lindsay Greenbush Carrie Ingalls Actor Sidney Greenbush Carrie Ingalls Actor Brenda Turnbaugh Grace Ingalls Actor Wendi Turnbaugh Grace Ingalls Actor Sid Conrad Doctor Guest Star Kate Williamson Nurse #2 Guest Star Peter Forster Gray Guest Star Michelle Downey Susan 'Sue' Goodspeed Guest Star Dago Dimster Boy #1 Guest Star Giselle Seibert Marcy Guest Star De'voreaux White Jason Guest Star Troy Melton Man #2 Guest Star Jack Lilley Driver Guest Star Anne Hall Miriam Guest Star