- 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 — S37E9
Episode: Elmo's Adventures With The Letter J
Air Date: 2006-08-30
Overview
Elmo celebrates the letter "J" by changing his name to Jelmo and jumping all over the neighborhood. During his travels, he sees Maria fixing things that begin with "J" and listens to Big Bird telling the story of Mary and her little lamb.