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.
| Actor | Age then | Age now | |
|---|---|---|---|
 | 46 | 55 | |
 | 28 | 37 | |
 | 50 | 59 | |
 | 54 | 63 | |
 | 26 | 34 | |
 | 28 | 37 | |
 | 46 | 55 | |
 | 46 | 54 | |
 | 82 | December 8, 2019 (85) | |
 | - | - |