The Grim Adventures of Billy & Mandy/Trivia


 * Hey, It's That Voice! -
 * Richard Horvitz as Billy and Harold
 * David Warner as Nergal
 * Grey De Lisle as Mandy
 * Greg Eagles as Grim, using his Captain Bob voice.
 * Diedrich Bader as Hoss Delgado.
 * Don't forget Weird Al as the Squid Hat (and the announcer for the video game adaptation)!
 * Dean Toadblatt's voice actor is Dean Wormer.
 * Nergal Jr. is Jimmy Neutron.
 * Jennifer Hale is Billy's mom
 * Rachael MacFarlane is Mindy and Eris
 * And who could forget Good Ole' Voltaire?
 * Jack O'Lantern is Zurg.
 * The Wiki Rule: The Grim Adventures of Billy and Mandy Wiki
 * Word of God: Maxwell Atoms revealed that Grim, Mandy and Billy represent aspects of autistic people such as Atoms.