ThunderCats (comics) are held prisoner in Castle Plundarr while Wilykit and Wilykat are the personal servants of Mumm-Ra. This storyline was distinctly more mature than many episodes of the series, with much harsher language such as "bastard" used by Mumm-Ra. Cheetara is depicted as holding a grudge against Lion-O for "abandoning" his friends and leaving her to be abused by the Mutants and WilyKat's corruption in the earlier mini-series takes greater form. Realizing he has betrayed his friends, the older cub flees when the mini-series concludes. Lion-O and the ThunderCats emerge triumphant over Mumm-Ra once again. By the third mini-series, "The Dogs
What a Cartoon! company to pay for the whole program. In addition to the eventual spin-offs, the "What a Cartoon!" short "Larry and Steve" by Seth MacFarlane featured prototypes of characters that would later go on to become MacFarlane's massively successful "Family Guy". The "What a Cartoon!" project and its assorted spin-offs brought Cartoon Network more commercial and critical success, and the network became an animation industry leader as the 1990s drew to a close. In 2001, coinciding with the death of William Hanna, Hanna-Barbera Productions merged with Warner Bros. Animation and Cartoon Network opened its own production arm, Cartoon Network Studios, in