A teacher at a school for emotionally disturbed children takes an interest in one particular child who doesn't talk but emits a stream of gibberish.
| Actor | Role |
|---|---|
 Jane AlexanderMary MacCracken | Mary MacCracken |
 Rachel RobertsHelga | Helga |
 David Ogden StiersDan Franklin | Dan Franklin |
 Nan MartinDoris Fleming | Doris Fleming |
 Matthew LabyorteauxBrian O'Connell | Brian O'Connell |
 Niki DantineBetty | Betty |
| SSusan PrattElizabeth | Elizabeth |
 Judy LewisMrs. O'Connell | Mrs. O'Connell |
 Ray BuktenicaDoctor Marino | Doctor Marino |
 Michelle StacyJenny | Jenny |
 Patrick LabyorteauxPatrick | Patrick |
 Kyle RichardsSarah | Sarah |
 Christopher WestJanis | Janis |
| FFrances StevensonEllen | Ellen |
 Peter BrandonLarry McCracken | Larry McCracken |
| LLaura CampbellMrs. Johnson | Mrs. Johnson |
| PPearl ShearMrs. Grady | Mrs. Grady |
 William TregoeArt Dealer | Art Dealer |
| SSarah Jane MillerSylvia | Sylvia |
| VVirgil CurryTrooper No. 1 | Trooper No. 1 |
| GGary T. NewTrooper No. 2 | Trooper No. 2 |
| AArlene BanasWoman At End | Woman At End |
| RReed DiamondBoy At End | Boy At End |
 Brian AndrewsHarry | Harry |
 Jace AlexanderLouis | Louis |
 Todd BridgesTodd | Todd |
| AAlex U'RenAlex | Alex |