Quattro

IV is a character appearing in the Yu-Gi-Oh! ZEXAL anime. IV is a participant in the World Duel Carnival. Cold and precise, he will win by any means necessary. His name is the Roman numeral for four. He and his brothers (III & V) have a crest on their bodies; IV´s crest is purple and on his right hand. He has a Duel Gazer similar to Kaito's.

Biography
IV was a participant in the National Duel Circuit. He faced Shark in the finals. He set Shark up to be disqualified by planting his Deck on top of a pot, so that it would fall and end up scattered on the table in the break room. That way, IV ensured Shark would see it, though Shark himself was unaware of that until IV himself told him later. While talking to Shark, IV also implied that the accident, the girl Shark knew, suffered, was caused by him. His brothers and him have a plan involving Shark and collecting all the "Numbers" cards. The crest he bears is known as the Tau Mark, which allows him to access "Zero Time" the same area Banana Links can enter as he did in Episode 12, as shown during his first duel with Yuma.

Deck
IV appears to have played a Gravekeeper's Deck, based on the cards shown on the floor of the waiting room.

Trivia

 * It appears that IV's appearance, mainly his hair style and colour combination, looks similar to that of Takuto Tsunashi from the anime Star Driver.