| Voice Actor | Richard Steven Horvitz (as Billy / Billy's Dad / Saliva), Greg Eagles (as Grim / Sperg), Phil LaMarr (as Hector Con Carne / Irwin's Dad / Dracula / Irwin's Grandmama), Dee Bradley Baker (as Mandy's Dad), Armin Shimerman (as General Skarr / Stomach / Baby Spider), Frank Welker (as Boskov / Monkey / Newscaster / Anchorman / Announcer / Barney Rubble), Chris Cox (as Principal Goodvibes / Meadowberry / Ahab), Maxwell Atoms (as Jeff the Spider / Cod Commando / Cartoon Artist / Mystery Announcer), Tom Kenny (as Wiggly / Alien Pilot / Big Bad Wolf / Boo-Boo), Martin Jarvis (as Nergal (Season 2-6)), Diedrich Bader (as Hoss Delgado / Pat The Baker), C.H. Greenblatt (as Fred Fredburger), David Warner (as Nergal (Season 1)), Henry Gibson (as Lord Pain), John Vernon (as Warden Toadblatt) |
