- 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 — S22E17
Episode: Oscar's phone system / Elmo imitates his friends
Air Date: 1990-12-04
Overview
Gordon exits 123 Sesame Street to find a beat-up phone booth just outside, complete with a couple of localized telephone poles and Ernestine the Telephone Operator seated at a switchboard. Sponsors: H, O, 12