Random Characters/Alphabet Lost and Found (by They Might Be Giants)

Cast

 * Mailbox (from Blue's Clues), SpongeBob SquarePants (from SpongeBob SquarePants), Horton the Elephant (from The Wubbulous World of Dr. Seuss), Bear (from Bear in the Big Blue House) and Dr. Teeth (from The Muppets) as They Might Be Giants