King Dedede is a recurring "antagonist" from the Kirby series and a wrestler currently in EDBW. He was a participant in Star Road 2, though he unfortunately lost in the first round to Professor Oak.
King Dedede is the self-proclaimed king of Dreamland, the setting of the Kirby games, though he apparently doesn't hold much actual power. Dedede is well known for being a greedy slob, acting as the main villain in the first game after stealing all the food in Dreamland for himself. However, underneath all that lard is a genuinely caring ruler, deeply keeping the interests of his subjects at heart, and he will gladly help Kirby and any of his other friends whenever Dreamland is under attack by a greater force.
Unless, you know, Kirby is falsely accusing him of being the cause of the problem in the first place again. Apparently after he steals everyone's food one time suddenly he's the reason for every problem Dreamland has.
Also in the anime he was given a Texan accent for some reason.