Dennis Macfield

Dennis Macfield is a character in the Yu-Gi-Oh! ARC-V anime. He is an exchange student from the LDS Broadway branch and belongs to the Xyz Summon course. In reality, he is actually associated with the Academia from the Fusion Dimension.

Personality
He is a well-rounded and charismatic type of character and has a sense of humor, yet can also be serious at times. As an admirer of Yūshō Sakaki he runs a Deck that seems to mirror his and Duels as an Entertainment Duelist, thus he is often flashy and enjoys performing acrobatics. When excited he seems to be rather air-headed and tends to forget about anything else at the moment, as seen when he wanted to talk to Yūya since he is the son of Yūshō and enjoyed his Dueling, only to be interrupted in the still ongoing Duel by the Ryozanpaku School students' offensive, forcing him to block their attempts at damage while showing comical frustration at their interference.

Despite his penchant to gather attention to himself as an entertainer, he does not seem to mind sharing the spotlight since he took the opposing attacks himself in favor of Yūya doing the honors, believing him more adequate for "the finale".

Present
Dennis saved Yūya Sakaki from defeat by Ryozanpaku School's Ken Umesugi and Makoto Takeda. They quickly bonded over their admiration of Yūya's father, Yūshō Sakaki. He encouraged Yūya to continue and win the Duel and helped him over his fear of going berserk with Dark Rebellion Xyz Dragon, which ultimately helped him win the Duel.

Dennis parted ways with Yūya later and waited in the Volcano Area to Duel Yuzu Hīragi. He won by turning her ace monster against herself and received her Pendulum cards. As he wished Yuzu luck in the tournament, Serena arrived and, claiming Dennis to be the Xyz remanent, challenged him to a Duel.

Throughout the Duel, Dennis tried to be entertaining despite the fact that Serena was continuously serious. When he drew "Polymerization" and realized he couldn't win, he merely Set a monster and a face-down. As Serena switched his monster to Attack Position and attacked it, Dennis prepared to activate his face-down but was distracted the arrival of the Obelisk Force and lost.

Although defeated, Dennis pursued Yuzu and Serena and eavesdropped their plan to switch clothes and find Shun Kurosaki. Yūri then arrived, prompting Dennis to say that he was "tired of waiting". Dennis told Yūri of the girls' plans and then set off to find Yūya. He met Yūya in the Jungle Area, where he feigned surprise of the alternate dimensions knowledge. He joined Yūya and Gongenzaka Noboru to find Yuzu. They searched in the Iceberg Area, where Dennis falsely determined that Yūri had completed his mission. He split later and instructed the Obelisk Force to capture Serena, Shun, and Tsukikage.