King Candy is the main antagonist of Wreck-It Ralph. He is voiced by Alan Tudyk.
He is the "ruler" of the in-universe arcade racing game SugarRush who is revealed to actually be the egotistical video game character Turbo the titular main protagonist of the in-universe arcade racing game TurboTime who is notorious for leaving his game and going into another arcade racing game called Road Blasters just to continue getting attention only to get both games broken. Since then Turbo was thought to be dead when in actuality he took over Sugar Rush and ruled it under his new King Candy persona after overthrowing its true ruler.
During the climax when the Cy-Bugs attack he takes over their mother and becomes their new leader and plots to use his new powers and Cy-Bug army to rule all games in the arcade as a virus.