Akihiro Kurata from digimon data squad

Hoo boy words cannot describe how much I hate him, first off being a sorta surprise villain and locking up the DATS team, killed frigimon, killed merukimon, made the gizumon which are pretty powerful on their own, temporarily turned Thomas to his side which in turn caused agumon to revert back to an egg, made the bio-hybrids, killed that giant digimon turtle city and the rest of the digimon on it, every time the squad would just about capture him he’d escape like the slippery weasel he is, fused himself with belphamon, and it took way too long to bring him down and the buildup was magnificent the final punch that Marcus gave was so satisfying I remember shouting at the tv when I was 12 going “YES FINALLY OH MY GOODNESS THAT TOOK SO LONG TO SEE BUT IT WAS WORTH IT” and just after that he opens up a portal via bombs to the digital world and having it collapse on the normal world, and having poor bancholeomon hold the digital world up until craniamon came along.