Guest Stars Merlin Olsen as Jonathan Garvey Ford Rainey as Dr. Burke Co Starring Jonathan Gilbert as Willie Oleson Alison Arngrim as Nellie Oleson Patrick Labyorteaux as Andy Garvey Hersha Parady as Alice Garvey Peter Haas as Paul Jennifer Factor as Jenny Robert Kenneally as Seth Barton Uncredited Brenda Turnbaugh as Grace Ingalls Wendi Turnbaugh as Grace Ingalls Jeffrey the Dog as Bandit