Caswell Francis Caswell Francis , known as Takashi Todoroki ( 等々力 孝 " Todoroki Takashi " ) in the manga and Japanese versions , is one of the main supporting characters and class chairman and a friend of Yuma Tsukumo appearing in " Yu - Gi - Oh ! ZEXAL " . In the Japanese version , characters tend to refer to him simply as " class rep " or " class representative " rather than his given name . Design . Appearance . Caswell is the only character in " Yu - Gi - Oh ! ZEXAL " who is seen wearing his school uniform at all times , to show his serious and punctual side . He has blue hair over black hair in a bowl - cut style , and his school uniform is the same as Bronk ' s and Yuma ' s , to signify that he is a first - year student . After his Duel with Quattro , Caswell wore a orange arm brace to support his injured arm . During the Heartland Academy festival , he wore a " Gagaga Magcian " cosplay . Personality . A very intelligent person , Caswell believes that everything can be planned out and executed as planned , only to be corrected by Mr . Kay saying that not everything goes according to plan . He has a habit ( in the original ) of saying " to summarize " whenever he makes a final statement on a subject . In the dub , he says " In the end " . Initially , Caswell had pride in being the class rep as he was greatly saddened and disappointed when Yuma was made the class rep instead of him . As a result , he was willing to accept Carlyle Chesterton ' s offer of becoming the chief disciplinarian just so he can referred to by position name like he did when he was class rep . After a conversation with Yuma while the latter was Dueling Carlyle , Caswell accepts that it doesn ' t matter what someone is called , but how good someone is at a position . Anime biography . Caswell was the class chairman of Yuma Tsukumo ' s class . He was able to figure out why the school ' s computer system went down , saying that someone tampered with the city ' s main computer . He Duel ed Yuma that day , as they could not access their online books in Mr . Kay ' s class . Caswell soundly defeated Yuma without taking a single point of damage , as Yuma could not access his Extra Deck since Astral was not present . Caswell was accused by Yuma of spreading the virus , but Caswell insisted he was being used by someone else and was unaware of what he was doing . He accompanied Yuma and Tori , leading them to the true culprit , Mr . Kay . After Yuma defeated Mr . Kay , his motives were revealed to be benign , as he simply wanted everyone to enjoy his virtual " Crashbug " . He appears again when Yuma came to school one morning and asks to see his Deck , taking it without Yuma ' s reply . When asked what he was looking for he said for Yuma ' s " Number s " . He claimed that even though he beat Shark and Flip it was due to the " Numbers " which made Yuma angry and want to challenge Shark again which he was present for . He along with Bronk came up with the idea of forming the Super Secret Number Card Investigation Club and found nothing on the school computers about them . World Duel Carnival . Caswell attended the World Duel Carnival opening ceremonies with the rest of his friends and was surprised at Yuma not receiving a Heart Piece . When the tournament began , he witnessed and was surprised at Flip and Bronk running off out of excitement in order to find Duels just before he witnessed Striker Crossit kicking a ball into Yuma ' s face and challenge him to a Duel . During Yuma ' s Duel with Striker , due to the effect of his " Stadium of Dreams " Field Spell Card , Caswell along with Cathy were transformed into commentators for the Duel . During the Duel , they commented on the moves that each Duelist did , and were both overjoyed when Yuma won . During the World Duel Carnival , he and Bronk were invited by Quattro to Duel in a certain area . During the Duel , Quattro let him and Bronk get the upper hand , but are then mercilessly defeated by " " . Caswell was knocked unconscious and taken to a hospital , but later after Shark ' s Duel with Trey , it is revealed by Tori that he is okay . After meeting Yuma again , he alongside the others try to find Yuma a weak opponent . Once they find Flip , they watch Nelson Andrews ' s Duel against Nistro , and are amazed . He later appears with the rest of his friends to support Yuma in his Duel against Trey . After Trey activated " Final Prophecy " , he realized that what was happening was now real . World Duel Carnival Finals . He and the others watch Yuma Dueling the Triad of Terror . When the visual for watching the Duel field went out , Caswell finds it suspicious . After Dr . Faker ' s defeat , he alongside the rest of his friends watched the Duel between Yuma and Kite Tenjo . ZEXAL II . Caswell , Bronk , Cathy and Flip are Dueling at school when Fender interrupted their Duel . Fender beat the four of them off - screen . Caswell cheered for Yuma during his Duel with Fender . He was stunned at Fender ' s " CXyz " , " Mechquipped Djinn Angeneral " after he Ranked Up his Xyz Monster , " Mechquipped Angineer " with " Rank - Up - Magic Barians ' Force " . While at school , Caswell went up against Yuma for class representative and was beaten by Yuma 20 - 19 , the one vote being that of Ray Shadows . Crushed by Yuma being class representative , Caswell turned to the Student Council President and was appointed chief of the Student Council ' s disciplinarian , aggravating everyone around him . Caswell watched Yuma ' s Duel with the Student Council President and was forced to supervise the Duel with the school ' s rules , including sending Yuma ' s " Gagaga " monsters back to his hand . Caswell was shocked to learn that the Student Council President was brainwashed by the Barian power when the President Xyz Summoned " CXyz Xyz Simon the Great Moral Leader " . After being motivated by Yuma ' s words , Caswell took off his disciplinarian uniform and dived into the school swimming pool . Shortly after Yuma ' s Duel , Caswell was made member No . 1 in the Super Secret Number Card Investigation Club . Later at school , Shark was asked by Bronk to Duel him , who trying to gain his blessings to date Rio , but Shark declined since he was no match for him . He also added that Bronk wasn ' t even at Yuma ' s level , causing Bronk to jump to the conclusion that Rio was with Yuma . Flip and Caswell overheard this and spread a rumor around the school . Oblivious to the rumor , an angry Rio challenged Shark to a Duel . During the Duel , Shark was able to counter every strategy Rio played and voiced little faith in Rio ' s confidence as a Duelist . While Shark was proud that Rio was able to gain courage , he proclaimed that she still had a long way to go if she wanted to beat him and defeated Rio with his " Shark Caesar " . Afterwards , Shark learned the rumor from Rio and cleared up the misunderstanding , clarifying that he wasn ' t the one spreading the rumor . Caswell and Flip were then chased down by Rio . During Heartland Academy ' s Fun Fair , Caswell cosplay ed as " Gagaga Magician " and helped the Floral Design Club trim flowers . Lotus Hanazoe admired his appearance , causing Caswell to blush . Deck . Caswell plays a " Crashbug " / " Debugger " Deck