ThunderCats (1985 TV series) be quite divorced from what had gone before, with adventures consigned almost entirely to New Thundera, and most villainous opposition coming from either Mumm-Ra or assorted new villains. The Mutants, Lunataks, and Captain Cracker all returned for one episode each, however. In the series finale, several conclusions are reached: Despite its large cast of characters, "ThunderCats" featured a rather small circle of voice actors, with only six actors providing voices for the entire first season. Every actor provided multiple voices, although the distinctive baritone of Earle Hyman (Panthro) left the actor providing only very occasional guest voices in comparison with
Cartoon Network the checkerboard motif retained and the "C" and "N" being the centerpiece) and a new slogan, "This is Cartoon Network!" The bumpers introduced as part of the rebrand featured 2D cartoon characters from its shows interacting in a CGI city composed of sets from their shows. These bumpers lasted from 2004 to 2007. By now, nearly all of Cartoon Network's classic programming had been relocated to its sister network Boomerang to make way for new programming. The city era returned in the "OK K.O.! Let's Be Heroes" episode and Cartoon Network special "Crossover Nexus". 2005 saw the debuts of four