"Arch Enemy guitarist Michael Amott has recorded some voices for the show, though he's not sure when and where they will be used. James Hetfield and Kirk Hammett from Metallica have also recorded voices. Members of Nevermore have also been rumored to have voices on the show."
"The Metalocalypse premiere was the #1 rated show in its timeslot among males aged 18-34, and earned the network's best premiere delivery and ratings to date in 2006. Among the top ad-supported basic cable programs of the week, METALOCALYPSE ranked #12 among men 18-34 and #6 among men 18-24. The series premiere ranked #30 for the week among adults 18-34."
