Editing Duel Masters (section)

===Shobu's friends===
;{{nihongo|Rekuta Kadoko|角古れく太|Kadoko Rekuta}}
:{{voiced by|[[Yuka Imai]] (2002-2010), [[Emiri Katō]] (2017-present)|[[Debi Derryberry]] (Season 1), Sterling R. (Season 1.5), [[Brianne Siddall]] (Season 2)}}
:Shobu's best friend and loyal sidekick. Even though he is an expert at the rules Rekuta is a terrible duelist, often going without a single win during a tournament. He's often seen with his portable laptop to keep track of important duels. As a running joke, he is often accidentally sent flying into the air.
:He has almost every card ever released (since his father {{nihongo|Maruo|丸雄|Maruo}} owns a card shop) but cannot correctly use the cards. His card knowledge often helps Shobu during duels.
;{{nihongo|Mimi Tasogare|黄昏ミミ|Tasogare Mimi}}
:{{voiced by|[[Saki Nakajima (voice actress)|Saki Nakajima]]|[[Jessica DiCicco]] (Season 1), [[Colleen Villard|Colleen O'Shaughnessey]] (Seasons 1.5, 2)}}
:Another of Shobu's friends. Mimi first appeared to be both ditzy, but was later revealed to be the second of the Four Temple Guardians at the Junior Duelist Center and an expert player. Mimi also has super-strength and excellent martial arts abilities which enable her to bring down any walls and other obstacles. Her personality sometimes switches to a "serious mode" while dueling. Near the end of the first season, Mimi reveals that Hakuoh was not always a heartless duelist and her personal connection to Hakuoh has developed into a slight crush throughout the series. She mostly uses Nature Civilization cards, but tends to use Shield Triggers from all 5 civilizations.
;{{nihongo|George Kamamoto|ジョージ釜本|Jōji Kamamoto}} / Boy George
:{{voiced by|[[Norio Wakamoto]]|Tim Diamond (Season 1), Terrence Stone (Season 1.5), [[Brian Beacock]] (Season 2)}}
:A baby in a pink bear suit who is always seen sucking a pacifier. He rides around in a motor baby carriage and uses a Water Civilization deck, he is a skillful duelist and has even defeated Mimi (a powerful duelist in her own right) fairly easily. In ''Charge'', he uses a Darkness/Water deck and withdraws from the tournament after losing to Yuu.
;{{nihongo|Dr. Root|Ｄｒ．ルート|Dokutā Rūto}}
:{{voiced by|[[Kan Tanaka]]|[[Derek Stephen Prince]] (Season 1.5, 2)}}
:Dr. Root is a [[mad scientist]] who is George's boss and an expert duelist. Outside of that, he also a human-resembling robot named Mr. Perfect and a pilotable giant robot. His eccentric methods always have some hidden lesson to help Shobu and his friends. In ''Duel Masters Zero'', he takes charge of training Shobu and his friends. He has a deck of Survivors in season 1, and in ''Charge'', he has a Darkness/Water deck similar to George's deck.
;{{nihongo|Sayuki Manaka|真中紗雪|Manaka Sayuki}}
:{{voiced by|[[Saeko Chiba]]|[[Debi Derryberry]] (Season 1), [[Peggy O'Neal (voice actress)|Peggy O'Neal]] (Seasons 1.5, 2)}}
:Appearing only in the anime, Sayuki Manaka is another one of Shobu's friends and classmates. A kind girl with a usually soft-spoken disposition, she cares deeply for Shobu and is always ready to help him when he's down. In addition, she is always present to see Shobu's matches and constantly cheers him on. Sayuki is shown to participate in duels on occasion. In the English version, Sayuki has an attitude despite being soft-spoken, and is very critical.
;{{nihongo|Knight|ナイト|Naito}}
:{{voiced by|[[Katsuyuki Konishi]]|Milton Lawrence (Season 1-1.5),<ref>{{Cite web|url=http://globalvoicenow.com/animation/|title=Animation – MILTON LAWRENCE}}</ref> [[Kirk Thornton]] (Season 2)}}
:Knight is Shobu's mysterious and soft-spoken mentor. In the English dub, his inner monologue is a source of much of the show's mature and subtle humor. Despite being Shobu's mentor, he is usually unable to assist his student in times of need due to either Shobu's stubborn attitude or Knight being unable to show up at the scene. On one occasion, Dr. Root had Knight take on a "Dragon Mask" persona to duel Shobu in order for him to reclaim his tournament pass. Knight, who only appears in the early anime, is loosely adapted from the manga-only character NAC.
;{{nihongo|NAC|NAC|Nakku}}
:NAC is a manga-only character. This character is loosely based on {{nihongo|Satoshi Nakamura|中村聡|Nakamura Satoshi}}, a Japanese card game player who became one of the top [[Magic: The Gathering]] players in Asia. He was involved in the making of "Duel Masters", assisting Dai Matsumoto (the manga author's nickname) as a technical advisor (the manga's plot is based around Magic: The Gathering). He has appeared in the manga both as NAC and as a more realistic cameo of himself known as "Nakamura-san". According to one of Dai Matsumoto's ''omake'' sections in the manga, NAC was also involved in the development of the Duel Masters card game.
;{{nihongo|Great Bucketsman|グレート・バケツマン|Gurēto Baketsuman}} / Extreme Bucketman
:{{voiced by|Akiko Suzuki|[[Steven Blum|Steve Blum]]}}
:A short duelist who wears a bucket on his head. He first appears in the Battle Arena tournament in ''Charge''. He lost to Yuu by surrendering, and later, under Zakira's mind control, duels against Shobu. His Deck is Fire and Nature, mostly involving Earth Dragons and Firebirds. His trump card is Soul Phoenix, Avatar of Unity. He gives the card to Shobu to use in the final duel against Yuu. In Duel Masters Cross, he plays a Snow Faerie and Initiate deck.
; {{nihongo|Master|導師|Doushi}} ''(マスター Masutā) in the manga''
:{{voiced by|[[Hidetoshi Nakamura]]}}
:Very little is known about the leader of the "Temple" (an organization within the Junior Duelist's Center). Throughout the first season he appears in a long black, hooded robe with his face half concealed by his long blond hair. "The Master" appears as Hakuoh's teacher and dueling coach. Knight suggests that the Master has only taken an interest in Hakuoh because he plans to use the young duelist in obtaining his "revenge" against the creature world who defeated him in a duel causing him to never duel again. "Master" seems to be responsible for Hakuoh's brainwashing and even pushes Hakuoh to attack Shobu with Alcadeias after his defeat. Master disappears after Hakuoh's defeat in Season 1 and hasn't reappeared since.
; {{nihongo|Goblin|ゴブリン|Goburin}} / Fritz the Goblin
:{{voiced by|[[Tomohisa Asou]]}}
:A [[goblin]] who works at the Junior Duelist's Center. In the dub, he is often mistakenly called a squirrel. Anyone who wants to enroll in the Junior Duelist's Center has to answer his riddles.
;{{nihongo|Kintaro Nanba|難波 金太郎|Nanba Kintarō}}
:The former gatekeeper of the Junior Duelist Center and part of an organization known as the {{nihongo|White Soldiers|白い騎士団|Shiroi Kishidan|lit. "White Knights"}}. He was discharged by Hakuoh after losing to Shobu (who he had quickly befriended). Kintaro returned in ''Charge'', having regained Hakuoh's friendship. He lost to Great Bucketsman in the Battle Arena tournament.

====Temple Guardians====
The {{nihongo|Four Temple Guardians|四天衆|Shi Tenshū}} are the elite members of the White Soldiers that work under Hakuoh.
;{{nihongo|Mikuni|三国|Mikuni}} / Johnny Coolburns
:The first of the Temple Guardians. He uses a Fire deck, and during his duel with Shobu he purposely mimicked everything he did in order to throw him off. Mikuni managed to defeat Shobu, but Mimi managed to convince the Master to invite Shobu to try again in a duel against Mikuni. He is defeated by Shobu the second time around and thus he quickly befriends him. Due to his defeat at the hands of Shobu, Hakuoh ends up discharging Mikuni. He returns in ''Charge'', having regained Hakouh's friendship.
;Temple Guardian 2
:See Mimi Tasogare
;{{nihongo|Gyuujirou Japan|邪藩 牛次郎|Japan Gyūjirō}} / Benny Haha
:{{voiced by|Katsuya Shiga|[[Kerrigan Mahan]] (Season 1), [[R. Martin Klein]] (Season 3)}}
:The third of the Four Temple Guardians. In the English dub, he is Mimi's "twin brother" where he had different plastic surgeries to look older where he claims that he is one minute older than Mimi. In the original version, he has no familial ties to other characters. Gyuujirou is often seen piloting a [[robot]] suit and first appears where he destroys Mimi's access card upon her defeat and wrecks her deck. He often cheats and relies on deceit in his duels. His constant defeat at the hands of the series' heroes has led him to hate both Shobu and Hakuoh.
:Gyuujirou returns in ''Charge'' claiming to have turned over a new leaf, but this is quickly revealed to be an act. He forces Hakuoh into dueling before their match in a self-made Duel Masters Battle Arena by taking Aizen and Mikuni as hostage. Hakuoh manages to complete the "perfect duel" and defeat Gyuujirou despite his many attempts to cheat. Afterward, Gyuujirou detonates a bomb beneath the stadium and seriously injures Hakuoh so that he is unable to duel him the next morning. With Hakuoh eliminated, he ends up dueling Shobu again and loses. It is revealed that he is also working with Yuu. After he lost to Shobu, Gyuujirou was banished by Yuu and trapped in a room with George which they both escaped in the same episode. He uses a Water Civilization Deck and later a Wave Striker Deck during his tournament match with Shobu.
;{{nihongo|Makoto Aizen|愛善 真|Aizen Makoto}}
:The fourth of the Four Temple Guardians who also worked as the Temple's [[janitor]]. In the anime, he was defeated by Kyoshiro Kokujo before he could fight Shobu. He also lost to Hakuoh in Duel Masters Battle Arena Tournament. In the later season, he is shown to be using a Fire/Light Civilization deck. His trump card appears to be Warlord Aizonius.