- 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 — S46E20
Episode: Hooper's Lockdown
Air Date: 2016-05-21
Overview
When Grover's new security gate system accidentally locks Chris out of Hooper's store, Elmo and Abby help solve math problems to open the gates in time to stop Cookie Monster from eating Alan's birthday cake. Also featuring Nick Jonas, Cookie Monster's 007 parody, and Elmo the Musical. Brought to you by the letter S and the number 8.