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