- 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 — S49E17
Episode: Fixing X
Air Date: 2019-03-09
Overview
Big Bird and Snuffy are the hosts of "The Letter of the Day Show" on Sesame Street, and learn all about how the letter X can come at the end of a word.