- Frank Oz (Bert)
- Sonia Manzano (Maria Figueroa Rodriguez)
- Roscoe Orman (Gordon Robinson)
- Martin P. Robinson (Telly Monster/Aloysius Snuffleupagus/Irvine/Slimey (voice))
- Suki Lopez (Nina)
- Violet Tinnirello (Charlie)
- Jennifer Barnhart (Zoe (voice))
- Ryan Dillon (Elmo (voice))
- Alan Muraoka (Alan)
Sesame Street — S17E128
Episode: Oscar's "New School for Grouch Research"
Air Date: 1986-05-14
Overview
A cheerful young lady named Amelia Adams (Teri Garr) applies to attend Oscar's New School for Grouch Research. Oscar calls his school to session, and asks his students what a Grouch would say if a neighbor stopped by their trash can. Sponsors: M, T, 6