Regular Show/The Nightmare Before Christmas


 * Mordecai as
 * Margaret as
 * Death as
 * Zim (from Invader Zim) as
 * Eileen as
 * Pops as
 * Skips as
 * High Five Ghost as
 * Thomas as
 * Audrey as
 * Gaz (from Invader Zim) as
 * Rigby as
 * Dib (from Invader Zim) as
 * Muscle Man as
 * Starla as
 * Benson as
 * Were Skunk as