Co Starring Alison Arngrim as Nellie Oleson Ricky Segall as Small Boy Beth Howland as Clerk Doris Martin as Monitor #1 John Howard as Hiram Potter Gracia Lee as Mrs. Bell Peggy Drier as Monitor #2 Uncredited Barney the Dog as Jack Cindy Moore as Tall Schoolgirl Mindy Down as Mary O'Donnell