King Dedede
About
He loves buying new "toys" and acts like a spoiled child despite his age. He's jealous of the attention Kirby gets, and while at first he even wanted to kill Kirby, later he focuses more on trying to kick him out or just make him look bad. Of course he has a kinder, gentler side, but it only shows in the most extreme of circumstances. (like in the De-appreciation-day episode where he played a prank on Kirby which blew him up which made Dedede upset that he thought he actually killed Kirby, and in the episode where a meteorite was going to hit Pop Star, so he built a playground to make up for his mistakes.)