- 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 — S1E54
Episode: Oscar Bakes a Cake / Mr. Hooper Invents a 10 Machine
Air Date: 1970-01-22
Overview
Oscar bakes a cake; Mr. Hooper invents a 10 machine. Sponsors: P, Q, U, 10