Caillou/Calvin & Hobbes

Cast

 * Mr. Washington as Calvin (Mr. Washington and Calvin both have their names ending in "n")
 * Caillou as Hobbes
 * Doris as Calvin's Mom
 * Billy as Calvin's Dad
 * Rosie as Susie
 * Sarah as Calvin's Teacher
 * Garfield (from Garfield & Friends) as Calvin's Principal
 * Shenzi (from The Lion King) as Rosalyn
 * Leo as Calvin's Dummy