- 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 — S48E5
Episode: Martian Mission
Air Date: 2017-12-16
Overview
Martians arrive on Sesame Street to find out what Earth people are like; Elmo shows them around and helps them learn that people come in lots of sizes, their skin comes in lots of colors, and people speak lots of languages.