Jonouchi's father

Mr. Jonouchi is Katsuya Jonouchi's father. He suffers alcohol and gambling addictions. After divorcing his wife, he lived with Katsuya, while she lived with their daughter, Shizuka.

Heis only appearence was when Yugi, Honda and Anzu (and Miho Nosaka in the anime) went to visit katsuya at his apartment. Thinking them to be Katsuya coming home, he fires a bottle at them, making them flee.