Mailbox (Arthur)

Cast:

 * Arthur - Mailbox (Blue's Clues)
 * D.W. - Luan Loud (The Loud House)
 * Baby Kate - Ducky (The Land Before Time)
 * Mrs. Read - Backpack (Dora the Explorer)
 * Mr. Read - Map (Dora the Explorer)
 * Pal - Blue (Blue's Clues)
 * Buster - Steve (Blue's Clues)
 * Francine - Sandy Cheeks (SpongeBob SquarePants)
 * Muffy - Wendy Darling (Peter Pan)
 * The Brain - Young Simba (The Lion King)
 * Binky - Mowgli (The Jungle Book)
 * George - SpongeBob SquarePants
 * Fern - Mrs. Pepper (Blue's Clues)
 * Sue Ellen - Cinderella
 * Molly - Jasmine (Aladdin)
 * Mr. Ratburn - Baloo (The Jungle Book)
 * Mr. Haney - Squidward (SpongeBob SquarePants)
 * Ed Crosswire - Drew Pickles (Rugrats)
 * Rattles - Swiper (Dora the Explorer)
 * Slink - Plankton (SpongeBob SquarePants)
 * Toby - Captain Hook (Peter Pan)
 * The Tibble Twins - Hopper & Bird (A Bug's Life)
 * Other Characters - Various Cartoon Characters