城之内 克也, Joey Wheeler, Jounouchi Katsuya
Jonouchi is Yugi039s best friend. At the beginning Jonouchi used to bully Yugi but after being saved by Yugi from an even more of a dangerous thug Jonouchi has been pals with Yugi ever since. Jonouchi likes to hang around with Yugi and learns a lot of new games. He039s not always confident that he039ll win his games but he always tries his best. He enters the Duelist Kingdom Tournament to get money for his sister Shizuka who is losing her eyesight. He wants to use the money for her surgery.