- 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 — S41E25
Episode: Grouch Mother's Day
Air Date: 2010-12-30
Overview
Oscar tries to give his mom the worst Grouchy Mother's Day ever, but he has keen competition from his sister Bunny. Also: the "Word on the Street" features Rachel Griffiths ("Brothers & Sisters") discussing the word "dozen" with Elmo.