Technically only 6 here but I fell behind on these and haven't done an update in a long time, so here's me trying to catchup and finish Villain month even though it's overdue now.
22. Hades (Disney Hercules)
23. Gnasty Gnorc (Spyro the Dragon)
24. Tsarmina Greeneyes (Mossflower/Redwall)
25. Malefor (The Legend of Spyro)
26. Xanatos (Disney Gargoyles)
27. Zim (Invader Zim)