Overview

This holiday special goes back in time to show how Elmo's ancestors--not to mention those of Grover, Big Bird, Bert, Ernie, Oscar the Grouch and Cookie Monster--helped transform "the most unfriendly street in town" into the bright, kind, music-filled place it is today.

Details

Cast

Audra McDonald

Zosia Mamet

Jim Gaffigan

Alan Muraoka

Suki Lopez

Ryan Dillon

Eric Jacobson

Matt Vogel

Caroll Spinney

Billy Barkhurst