The Grim Adventures of Billy & Mandy/Spongebob

Cast:

 * Billy as SpongeBob
 * Irwin as Patrick
 * Harold as Mr. Krabs
 * Mandy as Sandy (their names "andy" rhyme)
 * General Skarr as Plankton
 * Silvia as Gary (both are pets)
 * Phil as Harold
 * Grim as Stanley S. SquarePants