Sesame Street 3659 (1969– ) Online
The Letter X does not want to be the letter of the day. And wants to quit the alphabet.
| Episode credited cast: | |||
 | Christopher Cerf | - | Bruce Stringbean |
 | Kevin Clash | - | Elmo |
 | Jim Henson | - | Kermit the Frog / Ernie |
 | Jerry Nelson | - | Harry Monster / Count Von Count / Announcer / Fiddler on the roof singer / Dr. Livingston |
| Miles Orman | - | Miles |
 | Roscoe Orman | - | Gordon |
| Carmen Osbahr | - | Rosita |
 | Frank Oz | - | Alistair Cookie / Bert / Grover |
 | Martin P. Robinson | - | Telly Monster |
 | David Rudman | - | The Letter X |
 | Caroll Spinney | - | Big Bird |