(Tyranno Hassleberry in NA localisation) is a physically built duelist with a very muscular physique who draws his strength from a mysterious source, Tyranno is introduced during the second season as one of Yuki Judai's new allies. Tyranno plays a Dinosaur deck, relying on summoning high-level monsters quickly, such as Black Tyranno and Ultimate Tyranno. Tyranno does so using a various assortment of cards, including New Ultra Evolution and Ultra Evolution. Several of his cards allow him to take advantage of his opponents placing their monsters in defense position, including Black Tyranno along with Dark Driceratops.
Voiced by: Shimozaki Hiroshi (Japanese), Christopher C. Adams (English)