- 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 — S17E24
Episode: Grouch diving contest
Air Date: 1985-12-19
Overview
At today's Grouchketeer meeting, Oscar presents a lesson on the letter S. On his Grouch computer, he's loaded a program that shows grouchy images of S words when the S key is pressed. Sponsors: O, S, 3