The Grim Adventures of Billy & Mandy/Caillou

Cast

 * Irwin as Caillou
 * Mandy as Leo
 * Mindy as Rosie
 * Eris as Doris
 * Sperg as Boris
 * Billy as Billy (Both share the name)
 * Numbuh 5 (from Codename Kids Next Door) as Clementine
 * Grim as Mr. Hinkle
 * Harold as Grandpa
 * Gladys as Grandma
 * Mrs. Butterbean as Herself
 * Tom (from Tom & Jerry) as Xavier