Mr. Clown

Mr. Clown is Ryuji Otogi's father. When he first appeared in the manga, his names was given as Mr. Crown, which was a mistake due to confusion between the letters "L" and "R" amoung Japanese speakers. The manga bunkoban corrected this mistake. In the English Yu-Gi-Oh! Dungeon Dice Monsters video game, he was called Sindin the Clown.

Mr. Clown lost to Sugoroku Mutou in a Shadow Game before and seems revenge. After Yugi Mutou defeats Ryugi Otogi in a game of Dungeon Dice Monsters, Clown smashes Yugi's Millennium Puzzle.