Season 9, Episode 28 A Question of Suits and Ties

The girls declare a moratorium on dating until the fraternity boys' dress habits improve. Wally: Skip Young. Roberta: Roberta Shore. Diane: Diane Jergens. Ginger: Charlene Salerno. Bruce: Bruce Belland. Jack: John Wilder. Mary Lou: Reita Green. Fred: James Stacy. The Nelsons: Themselves.