Chowder/The Powerpuff Girls (1998)

Panini as Blossom

Dee Dee (from Dexter's Laboratory) as Bubbles

Cow (from Cow & Chicken) as Buttercup

Filburt (from Rocko's Modern Life) as Professer Utonium

Oto (from Doki) as The Mayor Of Townsville

Anabella (from Doki) as Ms. Bellum

and more