Guest Stars Robert Reed as Barney Mason Loretta Swit as Terry Larsen Charles Frank as Jim Wright, Seniors' Chaperone Richard Mulligan as Ron Larsen Edward Andrews as Seniors Group Leader Kristy McNichol as Kelly Rixie Scott Baio as Graham D. Pickrel II Pamela Bellwood as Judy Watson Hermione Baddeley as Kitty Pickrel Co Starring Florence Halop as Millie Lindsay Queenie Smith as Helen Lindsay Betty Kean as Mrs. Svenson