- 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 — S15E14
Episode: Episode 1849
Air Date: 1983-12-08
Overview
Oscar runs a dog training school teaching dogs to disobey him, adding "don't" to commands when his initial approach fails. Snuffleupagus confirms his reality while Gordon unknowingly plays a duet with Snuffy thinking it's Big Bird. Sponsors: Q, V, 4