A list of characters from the Yu-Gi-Oh! GX anime and manga series, Oddly Named Sequel to Yu-Gi-Oh!.ALL spoilers will be unmarked ahead. Beware major spoilers. I Repeat! ALL spoilers will be unmarked ahead. Beware major spoilersPlease remember the above mentioned when you update this page. Leave the spoilers unmarked to avoid confusion or look for and mark them all. Thank you.
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Judai Yuki (Jaden Yuki)
Osiris Red. The top student at Duel Academia and the series protagonist, whose character in Season 4 is practically unrecognizable from his character in Season 1, due to a brutal Break the Cutie arc in Season 3 and being used to demonstrate the realistic psychological trauma of many tropes from the original series and shonen anime heroes in general on a kid.
Voiced by: KENN (Japanese) and Matthew Charles (English)
Almighty Janitor: Is Osiris Red, the lowest tier that is mocked for being full of stereotypical losers, but is the best duelist in the academy.
Badass: One of the most skilled duelists in the series overall.
Bash Brothers: With Syrus against the Paradox brothers. Also, with Jesse on two occasions.
Bi the Way: Blushed when close to a female duel monster, implied to like Johan (Yubel called him out on it. Twice.), and canonically loves Yubel, a hermaphroditic duel monster.
Bond Creatures: His spirit partners include: Winged Kuriboh since the beginning; in season 2, Elemental Hero Neos and the Neo Spacians were added; in season 3, it's revealed during his childhood he also had Yubel but was separated for reasons, she is included in season 4 however.
Book Dumb: He's a dueling prodigy, but is regularly mentioned to have awful grades and often sleeps through or skips classes.
Born Lucky: Even outside of dueling he is lucky enough to have went on a 10-day streak of drawing the Golden Eggwich correctly, a type of food made in Duel Academy's cafeteria and hidden among the rest of the sandwiches.
The Magic Poker Equation: There are real life duelists who would kill for the luck Judai has. He can top deck the exact card he needs several times per duel, if he has no hand he'll probably draw Bubbleman, Fifth Hope, Pot of Greed, or something that lets him draw more cards, and it's not uncommon to draw something that lets him draw even more. Any time he ever plays A Hero Emerges his opponent will always pick a monster, and if he uses a card like Card Trooper to mill cards from his deck, every time he does one of the milled cards is Necroshade or Necro Gardna, and you can bet he has a card ready like Miracle Fusion or Miracle Contact to use the other cards sent to the Graveyard.
There's another aspect to Yuuki. The yuu is the kanji meaning "game"—the same "yuu" that shows up somewhere in all other Yu-Gi-Oh! series' protagonists' names. Plus the ki can also be pronouned jou, which means that an alternate pronunciation of Yuuki is yuujou—"friendship."
Technician Versus Performer: Leans very highly towards the performer side in his dueling. Lampshaded in his duel with Zane, when he calls Jaden out for being too technical and therefore uncertain in his strategy.
Blithe Spirit: Everyone is bewildered by Judai being a great duelist in spite of his incredibly laid-back attitude and poor grades when other students work their butts off to get into the academy and get the recognition he has.
Next Tier Power-Up: During his Heroic BSOD after his loss to Aster, he gains a new deck of Neo Spacians and Elemental Hero Neos. These are cards he made as a child that fall from outer space to aid him.
Prodigal Hero: In season 2, he leaves Duel Academy after losing to Aster and being unable to see his cards. Stuck out at sea, he ventures into Neo Space where Aqua Dolphin informs him of the danger that season. He returns to Duel Academy to defeat Aster and save his dorm from demolition.
Asskicking Equals Authority: The Supreme King commands an army of ruthless Evil Minions capable of decimating entire villages. As soon as the Supreme King is defeated, one of his previous minions seeks out Jaden to build his reputation by defeating him.
Attack! Attack! Attack!: Enraged by the loss of his friends Jaden continuously attacks Brron with Neos with several combos with the intent of destroying Brron's monster over and over until he feels better. Unfortunately Brron couldn't keep up.
Bad Powers, Good People: When Jaden chooses to embrace the Supreme King's power against Yubel in their last duel. Subverted when it is revealed to be the Gentle Darkness, the power to oppose the Light of Destruction.
Battle Aura: The Supreme King can emit darkness powerful enough to generate shock waves and create a dark aura around himself. While Dueling, his opponents as well as spectators feel an enormous pressure coming from him, which can intimidate powerful duelists such as Axel to cower in fear of him.
Broken Messiah: His failure to save his friends has driven him over the edge.
Creepy Monotone: Although Jaden and The Supreme King are both played by the same voice actor (in both versions), their voices are much different. In the Japanese version, The Supreme King's voice is much deeper and foreboding in Jaden's subconscious while it is still Jaden's voice, but harsher and forceful on the outside though it is in a monotone. In the English version his voice is a harsher version of Jaden's voice complete with electronic effects; and while his voice does show emotion, it's never anything more than anger.
Deconstruction: Of all of the above listed tropes in previous seasons. The second half of Season 3 examines what happens when the Idiot Hero who duels for fun is pitted against Chessmaster extra-dimensional invaders who duel to the death and use his friends as antes. Theresultsarenotpretty.
Determinator: In the original, during the final duel he constantly reminds Yubel he won't be defeated.
Devoted to You: In a past life, Yubel offered to be transformed into a Duel Monster to protect him forever, this moved Jaden's past self to the point of devoting himself to loving his only friend and never forgetting Yubel. Learning this leads Jaden to forgiving Yubel and fusing themselves together.
Pragmatic Hero: Becomes this during his search for Jesse in the different dimension, he chooses to ignore the safety of his other friends to find Jesse. In the final duel, he resorts to using the Supreme King's power to oppose Yubel, and even regretfully sacrifices his most powerful monster Rainbow Neos to prevent losing the duel.
The Unfettered: As the Supreme King, his cruelty has no bounds as he is willing to sacrifice as many people as he has to in order to accomplish his goals along with his lack of remorse after defeating someone himself. In the final duel with Yubel, Jaden even regretfully removes Rainbow Neos from the field to prevent losing the duel.
Unstoppable Rage: While using the Supreme King's powers, regardless of his cause.
What the Hell, Hero?: He gets this from his friends who are captured by Brron because of him, before they are sacrificed for Brron's ritual.
The Atoner: He continues to blame himself for all the problems the academy has faced and wants to safeguard his friends from further danger refusing to involve them.
Aura Vision / Sensor Character: Using Yubel's powers he can see the auras of others, like when he checked to see if Sartorius was being controlled or when he saw the auras of the Egyptian Gods in Yugi's deck.
Charles Atlas Superpower: He was jumping on platforms while trying to escape from an exploding Kaiba Corp building, as well as jumping from building to building when he was attacked by Paradox in the movie.
Coming-of-Age Story: This season concludes with him learning to become much more responsible without letting go of who he is.
Deconstruction: Continues the aftermath of the past season, realizing that many of the antagonists the heroes have faced have been drawn to the academy by him, and thus he's to blame for all the chaos of the series. As the season ends however it leans more to a Reconstruction by restoring most of Jaden's Ideal Hero aspects.
Decon-Recon Switch: The season starts with him a changed person from the events of the previous season, and he appears a much more cynical person for it. As the season ends however his previous optimistic traits return as he's determined to convince others, and himself unconsciously, that they can move past their doubts of either past mistakes or the fear of the future. And finally at the very end with his duel with Yugi, after 2 seasons of life and death duels, he rediscovers his passion for dueling again.
Fire-Forged Friends: He brings this trope up with a metaphor about cards. How a person starts with a seemingly regular card but after countless duels, good and bad, a powerful relationship is forged. In his case, Elemental Hero Neos.
Heroic Safe Mode: The reason he's the way he is now is because he's still broken after the previous season and has yet to fully recover.
He's Back: At the very end after dueling Yugi, it seems he's finally recovered his passion for dueling and is back to his old self.
Already displayed shades of this in the Duel Royal with Johan and Fujiwara. He and Johan pull off their combination beautifully and he is back to joking around for a while. At least until Johan disappears as well.
In the End, You Are on Your Own: Played straight during the duel with Darkness when Yubel tells him this after she is removed from the duel. Then subverted. He convinces his friends to fight against the Lotus-Eater Machine and encourage them to not give up. Which leads them all to appear while he deals the finishing blow to the Big Bad.
Jerkass: To some of his friends early in the season.
Knight Errant: Becomes this by the end of the series after graduating from duel academy. Deciding to search for those who he might be able to help with his powers of being able to connect with spirits.
Next Tier Power-Up: After last season's fusion with Yubel he uses her powers throughout this season, which are a hindrance to the Big Bad.
But once Johan shows up he's back to his usual cheerful self, even when dueling against a powerful opponent.
The Stoic: Brooding and quiet in comparison to his Keet tendencies before.
Not So Stoic: By his duel with Yugi he's back expressing excitement every turn of the duel and having so much fun he breaks out into laughter with Yugi. Had shades of this even before that in his duel against Fujiwara where he teamed up with Johan. Their usual antics shine through and he even laughs heartily with his friend when they trick Fujiwara into believing that they're fighting each other now.
He's also really shaken when he thinks Mr. T got to Johan.
Tragic Dropout: He submits his Notification of Withdrawal to leave duel academy in the second episode realizing all the danger is drawn to him. Subverted a few episodes later when he decides to stay.
Summon Magic: Using Yubel's powers, he summons Neos as a real monster in the real world whenever he's in danger.
What Is This Feeling?: When his hand starts shaking in his duel with Yugi, Yubel points out that he's having fun again.
"World of Cardboard" Speech: Brought up during the duels with Sartorius and Darkness about Jaden being corrupted by power, and Jaden responds that he now has responsibilities to use those powers against evil. Darkness calls him out for not understanding how helpless his friends are, and he responds that he isn't as strong as he appears to be and only continues fighting on sheer hope alone.
You Are Better Than You Think You Are: Judai convinces everyone trapped by Darkness to break free by restoring their faith in themselves, while at the same time accepting his past mistakes as the Supreme King and moving on.
Johan Andersen (Jesse Anderson)
Introduced in Season 3; the top student of North Academia and owner of the only set of Gem Beast cards. He quickly becomes Judai's best friend and closest partner in the struggle to save reality in Season 4.
Voiced by: Kanako Irie (Japanese) and Christopher C. Adams (English)
Cain and Abel: A non-sibling related example with Judai. Yusuke tries to tempt him to defeat Judai, so Johan can be the best and he proceeds to attack Judai. Subverted because it was all an act and both Johan and Judai reveal they don't carry any ill will in trying to out do each other in dueling.
Dissonant Laughter: During the duel against Martin to save duel academy, he finds pure joy from dueling the Sacred Beasts. Even Judai isn't quite sure what to say to that but let's himself be infected by the enthusiasm.
Distressed Dude: His disappearance sets the events of the latter half of season three in motion.
Judai's original best friend and Sidekick, a role he fights to keep in Season 2 but gradually leaves behind to pursue his own Character Development in Seasons 3 and 4.
Voiced by: Masami Suzuki (Japanese) and Wayne Grayson (English)Juudai's best friend and sidekick, Sho Marufuji (U.S. name: Syrus Truesdale), whose feelings for his friend toe the line between brotherly and Ho Yay (if anything, this is exaggerated by several lines of dialogue in the dub, and has netted him rivals for Juudai's attention/affection in the form of Tyranno Kenzan and Overseas Champion Johan Andersen); he has unquestionably had the most Character Development of all the characters, symbolized by his promotion to a higher dorm every season.
And Then Syrus Was a Zombie: Temporarily turned into a duel zombie in season 3 when duel academy was sent to the different dimension by Yubel.
School Idol: Becomes one in the 4th season to all the younger duel academy students.
Targeted Human Sacrifice: Targeted as a sacrifice in the 3rd season for Brron's ritual to complete the Super Polymerization card that required several negative emotions to create. Syrus providing the negative emotion of doubt. Although he is spared from this fate, avoiding capture from the Dark Army.
That Makes Me Feel Doubt: In the 3rd season his negative feeling of doubt becomes a key sacrifice to Brron's ritual for the creation of the Super Polymerization card. Although he avoids being sacrificed he continues to express his doubt throughout the season believing Jaden is unable to save everyone and at the risk of being taken over by the Supreme King once again in the final duel with Yubel. Syrus's doubt is removed once and for all when Jaden saves everyone at the end of the season with Syrus believing he performed a Heroic Sacrifice.
Took a Level in Badass: Starting as a Osiris Red student in season 1, then he is promoted into a Ra Yellow student in season 2 and after the half of the season he defeated Blue Obelisk students easily. He eventually became a Obelisk Blue student.
Ra Yellow. Enters Duel Academia in Season 2 and decides to become Sho's rival for the role of Judai's "little brother."
Voiced by: Hiroshi Shimozaki (Japanese) and David Wills (English)Tyranno Kenzan (U.S. name: Tyranno Hassleberry), introduced in Season 2, a dinosaur-obsessed student with actual "dino DNA" flowing through his veins from an accident (and for some reason fancies himself a wannabe Army drill instructor in the dub). Originally fought with Sho over Juudai's attention (and affection), but quickly found a new rivalry with fellow fossil enthusiast Jim "Crocodile" Cook in Season 3.
The Big Guy: He's big, he's aggressive and he has dinosaur DNA!
Class Representative: Becomes this by the 4th season to demonstrate how independent he has become considering he won't be graduating with most of his friends. He mostly organizes activities for the graduating students.
Disney Death: In Season 3, he is killed when he is sacrificed for Brron's ritual, but is revealed to being held in another dimension by Yubel and is returned to Duel Academy at the end of the season.
Targeted Human Sacrifice: Becomes a sacrifice in the 3rd season to Brron's ritual to complete the Super Polymerization card that required several negative emotions to create. He provides the negative emotion of Hatred.
That Makes Me Feel Hatred: In the 3rd season his negative feeling of hatred becomes a key sacrifice to Brron's ritual for the creation of the Super Polymerization card. Hassleberry expresses his hatred against Jaden before he is sacrificed for Jaden's recklessness.
Verbal Tic: Ends sentences with "-saurus!" and "-don!" in the original.
Jun Manjoume (Chazz Princeton)
Obelisk Blue/Slifer Red. Judai's first rival. Originally a rich snob who looked down on everyone else, he went on a short journey to find himself in Season 1 and came back much more honorable, despite his attempts to hide it, and determined to succeed because of his merits and skill rather than his money.
Voiced by: Taiki Matsuno (Japanese), Tony Solerno (English, Episode 1-89) and Marc Thompson (English, Episode 90 onwards)The Rival and Worthy Opponent to Judai. Though initially a high-ranking member of Obelisk Blue, he experiences a losing streak and drops out, going on a journey to find himself and ending up at the North Academy duelling school. Though he rejoins Duel Academy, he is forced to start over at Slifer Red and decides to keep wearing his black North Academy uniform. He eventually makes it back up to Obelisk Blue.He also has the power to see and hear monster spirits. Unfortunately, his "spirit partners" are the Ojama Trio, three rather disgusting and tactless monsters that frequently annoy him. He grows fond of them over time but will never admit it under any circumstance.He gets significantly better treatment in the manga: Instead of the Ojamas, his spirit ally is the Light and Darkness Dragon, whose power even scares the Big Bad.
All Love Is Unrequited: Despite his massive (and often hilarious) crush on Asuka, the poor guy was doomed from the get-go.
And Then Chazz Was a Zombie: Temporarily turned into a duel zombie in season 3 when duel academy was sent to the different dimension by Yubel.
Insistent Terminology: In the Japanese version, he insists that people show him respect by addressing him with the -san honorific: "Manjoume-san da" ("It's Mr. Manjoume"). This leads to his in-universe nickname of "Manjoume Thunder" when he transfers to a new school and his new classmates mistake "san da" for the Japanese pronunciation of "thunder".
Lost in Translation: His "Manjoume Thunder" nickname in the Japanese version- a nickname born from a Japanese wordplay pun- was replaced by "Let's Chazz it up!" and "The Chazz" in the dub. Unfortunately, this removes the explanation for why he starts using more lightning-based cards and symbolism after acquiring the nickname.
Targeted Human Sacrifice: Becomes a sacrifice in the 3rd season to Brron's ritual to complete the Super Polymerization card that required several negative emotions to create. Chazz providing the negative emotion of anger.
That Makes Me Feel Anger: In the 3rd season his negative feeling of anger becomes a key sacrifice to Brron's ritual for the creation of the Super Polymerization card. Chazz expresses his anger against Jaden before he is sacrificed calling Jaden selfish.
Third-Person Person: The aforementioned "Manjuome san-da" can be translated as "It's the Manjoume" under some circumstances. The dub retains this, where he calls himself "The Chazz."
Wax On, Wax Off: He goes through this organizing cards for Edo, which improves his dueling somehow...
What the Hell, Hero?: In season 3, he angrily berates Jaden for going off on his own and claims he cares only for himself which is the cause of his friends being captured and sacrificed by the Dark Army.
Obelisk Blue. Judai's designated female love interest (which, to her initial disappointment, comes to nothing) and the token shonen fanservice girl... which she hates. Kind, friendly, not-at-all proud or arrogant like most Obelisks, but has a predictably hard time in a series where she's surrounded by boys and Ho Yay.
Action Girl <—> Faux Action Girl: Zigzagged. She's considered one of the seven best duelists in Duel Academy, but she merely wins against filler opponents and has a victory in a plot-important duel only twice. However, she manages to push her opponents pretty close to defeat before having the tables turned on her and is able to hold her own against the guys (Judai, Fubuki, and Manjoume), as well as battle people that gave the rest of the cast some issues (Titan, for example). The major question is if she lives up to her hype, which YMMV.
All Love Is Unrequited: Does not reciprocate Manjoume's crush on her, and Judai does not reciprocate her crush on him, and generally seems to be oblivious to it.
Disney Death: In Season 3, she is killed when she is sacrificed for Brron's ritual, but is revealed to being held in another dimension by Yubel and is returned to Duel Academy at the end of the season.
School Idol: Becomes one in the 4th season to all the younger duel academy students.
Targeted Human Sacrifice: Becomes a sacrifice in the 3rd season to Brron's ritual to complete the Super Polymerization card that required several negative emotions to create. Alexis providing the negative emotion of sadness.
That Makes Me Feel Sadness: In the 3rd season her negative feeling of sadness becomes a key sacrifice to Brron's ritual for the creation of the Super Polymerization card. Alexis expresses her sadness against Jaden before she is sacrificed claiming she feels upset knowing Jaden doesn't care for his friends, not having looked out for their safety in his search for Jesse.
"Well Done, Son!" Guy: His father runs a sake corporation (hot sauce in the dub) and Chumley wants to be a member of the dueling industry to make his father proud. He disagrees at first anyway, but the Power of Friendship changes his mind.
Junko Makurada (Jasmine) and Momoe Hamaguchi (Mindy)
Obelisk Blue. Asuka's friends, who mostly function as comic relief and Those Two Girls in the series. Unlike Asuka, they're not very good at dueling. In the second season, they are two of the few Obelisk Blue students who aren't recruited for the Society of Light.
Junko voiced by: Tomomi Yachi (Japanese) and Suzanne Goldish (English)Momoe voiced by: Mariko Nagahama (Japanese) and Lisa Ortiz (English)
Wingding Eyes: Their eyes turn into hearts whenever an attractive guy walks by, as evidenced by their reactions to Ayanokouji, Fubuki, Yugi, and Edo.
Daichi Misawa (Bastion Misawa)
Ra Yellow. The top student in Ra Yellow and smartest student at Duel Academia... at least before a disturbing romantic rendezvous in mid-Season 1; his shtick in Season 2 changed from being a genius to being forgotten by all the characters and ignored by the recruiting Cult.
Voiced by: Yuuki Masuda (Japanese) and Eric Stuart (English)
The Magic Poker Equation: A pointed aversion, he's one of the few characters in the Yu-Gi-Oh! universe who doesn't rely on it. He uses mathematical formulas and science to fine-tune his decks to perfection, thereby minimizing the variable of luck in his duels and making his decks very precise and strategic, and he considers what he knows about the opponent's deck before choosing one of his own six as the best choice to counter the opponent. Unfortunately most of his opponents do rely on this trope and have Plot Armor to boot.
The Worf Effect: Beyond his one win against Manjoume, despite dueling impeccably, he never wins another duel... until he joins the Society of Light during Season 2...and those wins are only against unnamed characters.
The Ace: A variation. Described as "perfect" on multiple occasions, effortlessly defeats the main character in his first on-screen duel, and is the undefeated best duelist at the Academy. Only duels three times in the season (two of them against Judai) because they couldn't figure out how to make it dramatic anymore. Not quite charming, and definitely not hammy, but he fits the bill. Sets him up for a brutalDeconstruction in Season 2.
Always Someone Better: The first to defeat Judai, who probably counts as a form of Unknown Rival, and is barely disputed as superior (at least until the Graduation Duel).
During the Phantom Demons arc, he easily destroys a villain without taking a single hit, before she forces him to make a Heroic Sacrifice for Sho. Judai very nearly loses against the same villain in the next episode.
Badass: The top duelist in Duel Academy and one of the best in the show. He only duels Jaden and the Shadow Riders in the 1st season because no other duelist is worth his time really.
The Magic Poker Equation: Topdecks all of the cards he needs to bring out his ace monster, Cyber End Dragon, within 3 turns, tops.
Married to the Job: A borderline example; similarly to Asuka, he states that he is devoted to dueling and uninterested in relationships. This was said to a middle school Fangirl, so take that as you will.
Freak Out: Shroud/Saruyama pushes him over the edge by having him experience Electric Torture, reminding him he's hit rock bottom in his dueling career, and that he's perfectly alone. With the only possible way to break out of it is to change...
The Gift: Deconstructed more brutally than with any other character besides maybe Judai.
Revenge: Averted when Aster/Edo confronts him. He only cares about winning and isn't bothered with past defeats.
Shoot the Dog: He does this to his Cyber End Dragon. Samejima (having taken control of Cyber End) thought Ryo would reclaim his favourite monster, but he instead creates a new strategy involving its destruction in order to win.
Genre Savvy: He's the only character to take Johan possessed by Yubel as a threat when he shows up. No one really thought the evil costume, demonic eyes and spouting nonsense about merging the 12 dimensions was any concern.
One Last Duel: Deconstructed. Ryo is dying of heart trouble from his time spent in underground duels with electro shockers. He spends the season trying to find one last Worthy Opponent before he dies, much to the dismay of his friends who tried to get him to stop in a certainly more dangerous dueling environment up until his death.
Secretly Dying: Until it becomes impossible to hide, he tells no one of his heart condition and brushes off any kind of concern from those who do notice the pain he's in.
Spirited Competitor: He spends almost the entire season looking for someone strong enough to give him one last amazing duel.
Storming the Castle: Twice in Season 3, during the different dimension arc to attack the Supreme King's army.
Earn Your Happy Ending: Started out the series known as the perfect duelist and after much struggle is not only able to live up to his own expectations in his duel with Yubel, but live to try to surpass them once again without his Hell Kaiser persona.
Passing the Torch: Sort of. He gives his deck to Sho, feeling he can use it's potential and decides to start over himself.
Unexplained Recovery: In contrast to the explained revivals of the other characters, he just randomly shows up. In his case, he has heart failure before fading away, whereas the others simply fade away, but were really trapped in another dimension.
Fubuki Tenjoin (Atticus Rhodes)
Obelisk Blue. Asuka's older brother and Kaiser's best friend, missing for the first half of Season 1 and brought back a dangerous mystery that would not be solved until Season 4.
Informed Ability: He's considered to be one of the best duelists at Duel Academy. Despite this, he never wins a single duel on-screen. Though to be fair, two of his opponents were Judai and HellKaiser Ryo, and it's implied that he wasn't playing seriously in his duel against Asuka. Lives up to the hype in the manga though.
Sympathy for the Devil: In his duel with Yusuke. He didn't care about what Yusuke was doing, he was just glad he was alive, calling him his friend and apologized that he didn't save him the first time.
Targeted Human Sacrifice: Becomes a sacrifice in the 3rd season to Brron's ritual to complete the Super Polymerization card that required several negative emotions to create. Atticus providing the negative emotion of anguish.
That Makes Me Feel Anguish: In the 3rd season his negative feeling of anguish becomes a key sacrifice to Brron's ritual for the creation of the Super Polymerization card. Atticus expresses his anguish to Jaden before he is sacrificed stating his feelings of helplessness being sacrificed.
Judai's new rival in Season 2. By day, he's the top duelist in the Pro League and the unfortunate dupe of his manager and best friend Saiou in recruiting members for the Society of Light cult; by night, he prowls dark alleys dressed up as Duel Monsters, defeating criminals in an attempt to find the man who killed his father.
Voiced by: Akira Ishida (Japanese) and Pete Zarustica (English)
Always Someone Better: Becomes the first person in the series to defeat Ryou, and give Judai one of his few losses (though Judai later returns the favor).
Ancestral Weapon: Aster inherited the Destiny Hero cards after his father was killed which he uses to bring justice to criminals.
Broken Ace: An extremely popular and talented individual not only in duel monsters but in a variety of professions. Yet he's overly driven by the death of his father as well as his best friend's change.
Creature of Habit: Played for laughs in season 4 when it's shown he keeps hundreds of the same suits, duel disks and tea drinks for consistent use. Justified because he is a famous pro duelist with a tight schedule to maintain.
Mook Horror Show: Does this in Season 3 when two of the Supreme King's henchmen come to his and Ryo's hideout looking for duelists. Edo leads one of the goblins to Ryo's chamber then duel's the other for information. After he's finished interrogating, he has Plasma brutally invoke this trope full stop as the goblin screams in terror.
Mr. Exposition: In season 3 when he introduces Johan and the Crystal Beasts.
Shadow Archetype: Quite deliberately a contrast for Judai; uses a similar deck(Hero themed) and had similar childhood passions for his hero monsters, but Edo takes dueling far more seriously, seeing it as way of dealing justice.
Shoot the Dog: When Aster is about to destroy "Plasma", The D reveals that the soul of Aster's father is trapped within the card. Aster's father speaks to him, revealing the truth behind the Light of Destruction and Sartorius. He urges Aster to attack and destroy "Plasma". Aster attacks and his father says good-bye leaving behind his sentiments before the destruction of "Plasma", which leaves Aster overwhelmed with sadness.
Vigilante Man: In season 2 he was in search of his father's murderer who held the Ultimate D card.
"Well Done, Son!" Guy: Because his father was taken from him while he was still young, he has a dependency on father figures, such as Sartorius, or his legal guardian, The D. This proves to be a weakness because they both have exploited him.
Osiris Red. Initially a one-shot character with a crush on Kaiser, she returns at the end of season two and earns her way into the academy by becoming runner-up in the Genex Tournament, despite still being too young to enter the academy the normal way. Develops a major crush on Judai, to which he is predictably oblivious.
The champion of Duel Academy's west branch, who trains for duels via life-threatening high wire stunts, which he claims aide his drawing skills. Initially a pawn of Cobra, he eventually becomes a valued friend to Judai.
Anxiety Dreams: For a short time during the period he was terrified of the Supreme King.
Badass: Put it this way — you can count on one hand the number of times Judai loses. When he duels Judai as the Supreme King, O'Brien forces a double KO, and in an earlier duel with Judai where he lost, he could have won had he gone with the second of two strategies he was considering.
Disney Death: In Season 3, he is killed when he draws in a duel with the Supreme King, but is revealed to being held in another dimension by Yubel and is returned to Duel Academy at the end of the season.
Sadistic Choice: When he was a child his parents were in a car accident where he was burdened with having to save only one of them. He saved his father who in turn saved his mother, regardless he felt that he effectively chose his mother's death.
Voodoo Shark: Fire-attribute cards apparently explode. This makes perfect sense to everyone and is never contested.
You Are Not Alone: Part of his character development when confronting the Supreme King, he learns to draw strength from the people who need him rather than having strength on his own.
Jim "Crocodile" Cook
The champion of Duel Academy's south branch, who carries a crocodile on his back in a special backpack. Becomes friends with Judai and company after dueling Kenzan, and provides a nice amount of Plucky Comic Relief even in the darkest parts of the series.
Voiced by: Naoya Iwahashi (Japanese) and Tom Wayland (English)
Magical Eye: The Eye of Orichalcum. When activated by Jim, the Eye gives him the power to peer into a person's mind or soul and discern what is happening within. The Eye also allowed Jim to talk to Axel, who was holding the artifact, even after he was defeated, suggesting that perhaps the Eye bonds to its bearer's spirit.
Nice Guy: Put it this way... Jim is just a regular guy at duel academy that loves dueling and discovering fossils, and when the cast gets into trouble he's there every time to lend a hand to stop Cobra, help duel academy in the different dimension, search for Johan, and when the Supreme King has Jaden trapped within, Jim goes to extreme lengths to save him.
Verbal Tic: Japanese version only - while Daitokuji-sensei often says "nya", Japanese cat meow, at the end of his sentences, other languages eliminate it altogether, and give him a German accent because he teaches alchemy.
Nice Job Breaking It, Hero: Season 3 would have gone a lot different if he hadn't brought Professor Cobra to Duel Academy, making his scheme possible. To make matters worse he leaves just as all of the students are passing out due to the Dis Bands.
Hidden Depths: Season 3 has him actual care about the students, mostly brought on by the presence of his son Martin.
Papa Wolf: But not as much as he'd like. He purposely isolates himself from Martin because showing favoritism towards a student is taboo for a teacher. (And it's the hardest thing he ever had to do, as he admits.)
Put on a Bus: Left to spend time with his son Martin, so he was absent in season 4.
Hidden Agenda Villain: Is present in all of season 2. With his motives and purpose of the Society of Light slowing being revealed to destroy humanity because he is possessed by the Light of Destruction.
More Than Mind Control: Part of how Sartorius brainwashes members into joining the Society by making them lose faith in their own lives and convincing them that joining the Society is a much more preferable alternative.
Powers via Possession: Sartorius wields supernatural powers given to him by the Light of Destruction, including the ability to materialize Duel Monster effects and to embed his power into Duel Monster cards, as well as other people, putting them under his control. He can also ward off weak spirits, cast illusions, and temporarily render others immobile. In addition to these skills, Sartorius' "other self" can use light to blast objects and perform telekinesis on them.
Sliding Scale of Free Will vs. Fate: In the original, the good side of him is convinced he is a puppet of destiny and his actions have just been for his interests, he apologizes to Edo that their friendship may just have been his attempt to save himself from his demise. Edo doesn't think so...
Saiou's younger sister, who has ambiguous Psychic Powers of her own. Although initially appearing to be her brother's minion, her primary goal in Season 2 is to get Edo and Judai to save her brother from the evil possessing him.
A malevolent celestial entity that possessed Sartorius when he first came into contact with the "Ultimate-D card" and the main antagonist of the second season. Highly dangerous, The Light of Destruction wreaks unholy calamity on the world in the second season and its influence triggers the conflicts of the third season.
Bigger Bad: The light's influence in the 2nd season was only a small part of it's entire essence. The Big Bad of season 3 was corrupted by the light and lead to the revelation that Jaden holds the power of gentle darkness to extinguish the light.
Demonic Possession: It first inhabited the Ultimate-D card, then DD, and finally Sartorius as it's main host.
Would Hurt a Child: The entire student body of Duel Academy actually to restore Yubel with the bio bands.
Amon Garam (Adrian Gecko)
I Am King
The champion of Duel Academy's east branch. Initially a neutral character, he actively attempts to thwart Cobra's plans before aiding Yubel. Disappears for a considerable length of time and appears in the third alternate dimension harnessing the powers of Exodia in an attempt to rid himself of Yubel's influence.
Voiced by: Nobuya Mine (Japanese) and Darrun Dunstan (English)
A God Am I: Wishes to become the King of the alternate dimensions.
Always Second Best: He was the primary heir to the Gecko Family/Garam Group until their first child was born. He contemplates killing his younger brother but chooses not to putting himself under him and worked diligently for his future. Then Adrian found himself in a different dimension where his brother wasn't a part of...
The Dragon: He starts out working for Yubel after Viper is removed, promising him power in return for his loyalty. Once Amon reappears searching for Echo it's clear he isn't going to settle for working with Yubel or someone else's power.
Token Evil Teammate / Sixth Ranger Traitor: He cooperates with Jaden and the group the first time duel academy is transported to a different dimension volunteering to help on missions even though he's aligned with Yubel at that point and looking out for his own interests. The second time they see him in a different dimension, he's purely villainous.
The main antagonist of season three, behind all the others. A possessive duel spirit from Judai's youth, she seeks him out due to a promise made by Judai's past life - with Judai himself has no knowledge of. Driven mad by the Light of Ruin.
Declaration of Protection: Deconstructed. In a past life, Yubel vowed to always protect Jaden from harm. In present time Yubel took that over the top hurting Jaden's friends and was sent away, and came back to hurt them more. After all of Yubel's horrible actions, Jaden recognises Yubel's sacrifices and forgives her once he learns the truth.
Expy: Of Yami Bakura and Yami Marik. Yubel has the same hairstyle as both, a third eye like Yami Marik, gets similar bulgy veins and a Nightmare Face to the latter as well, and has just as much craziness as both before her Heel-Face Turn.
Face-Heel Turn: Gets corrupted by the Light of Ruin after being sent in space by Judai.
Also in a duel in season 4, Judai fuses Yubel with Elemental Hero Neos and summons Neos Wisemen.
Gone Horribly Right: Yubel was originally a friend of Jaden's in a past life who vowed to protect the spirit of the Supreme King from harm. Yubel did end up protecting Jaden from any harm and awoke the Supreme King's powers within him, but the ordeal was very troubling for him.
Spirit Advisor: During the duel with Darkness, Yubel appears for the first time onscreen to lend strategy to Judai after spending much of the season as the The Ghost. Yubel also comments during Judai's duel with Yugi.
Brron serves as the first main antagonist of the Dark World arc of season 3. Demented and sadistic, Brron rules the alternate dimension as its vile dictator. Although his role in the anime is brief, his actions are vital in Jaden Yuki's transformation into the Supreme King of the alternate dimension.
Voiced by: Kentarou Itou (Japanese) and Jamie Mc Gonnigal (English)
Oh Crap: Just as he's sure Jaden has finished his final attack, Jaden activates Battle of Sleeping Spirits to revive both Elemental Hero Neos and Reign-Beaux, but Brron was unable to special summon considering he activated a card earlier that prevented him from having monsters summoned any further to his side.
The envoy of Darkness, who demonstrates an ever-increasing number of inhuman powers - teleportation, shapeshifting, ripping holes in the dimensional fabric to duel Judai, possession and the ability to erase people from existence, to name a few.
Break the Cutie: Not nearly as much as in the anime, but it's hard on him watching his mentor go into a coma, and he briefly falls into a Heroic BSOD during his duel with Reggie, as he knows that the loser will suffer a penalty game.
Sadistic Choice: Chronos forces him to duel Sho. If he wins, Sho will be expelled, and if he loses, his deck will be confiscated. He decides to win, and it turns out that Sho's 0 on the last test, the reason he was in trouble, was not his final grade.
Screw the Money, I Have Rules!: Has to prove to his peers that he wasn't only admitted to the academy (and given the unprecedented assignment to Obelisk Blue upon entry) because of his family's wealth.
Adaptational Badass: Admittedly starts out as weak as before, but toughens up much more quickly this time around. His mistake that caused Ryo to lose faith in him was not misusing a card, but throwing a game to spare the feelings of his opponent.
Big Brother Worship: Has a bit of a case of this toward Ryo, as while the other spectators are rooting for Manjoume, he is completely convinced that Ryo will win. And he turns out to be correct.
Cute Machines: Still plays Vehicroids, but uses entirely different ones.
Take Up My Sword: Knowing he was going to fall into a coma due to a shadow game, he gave Judai his deck and jacket.
Worf Had The Flu: Judai actually manages to defeat him once, but he does so while he's not using his normal deck.
Big Damn Heroes: After Judai loses to Tragoedia when the latter is possessing Fubuki, Kuriboh saves him from the penalty game. He does it again with Light and Darkness Dragon after Tragoedia's defeat, sealing him permanently.
Undying Loyalty: To Manjoume, watching his duel with Judai, even after said owner pitched a tantrum and buried him so that Manjoume could try proving that he could duel on his own. Naturally, Manjoume came back.
The Voiceless: Actions speak well enough when you're a Dragon Spirit.
Stern Teacher: Doesn't hesitate to go hard on Judai, although typically does so in a cheerful manner.
Worf Had The Flu: She gives up a chance to win in order to try to help Koyo. By the time she's committed herself to finishing Reggie off to protect Judai, it's too late
Agent Scully: There must be a logical explanation for multiple people falling unconscious after dueling today, just like at the BattleCityTournament. There's no way it's evil sorcery like the records claim.
This is hinted at much earlier when a flashback shows the end result of what we're led to believe was a complete Curb-Stomp Battle with David Rabb biting the proverbial curb. Remember that Rabb is one of the Co-Dragons who gave Manjoume a rough time when they dueled.
Unwitting Pawn: Just like his anime counterpart with Saiou and DD, has no clue that his adoptive father and mentor is Tragoedia's puppet, or that he's giving people over to Tragoedia.
Winged Kuriboh is Jaden Yuki's Spirit Partner. In the anime, Jaden received the "Winged Kuriboh" card from Yugi Muto in the first episode. In the manga, the card was instead given to Jaden by Koyo Hibiki.
Animal Talk: Only Jaden understands what Winged Kuriboh says.
Big Damn Heroes: Saves Jaden from the duel ghouls during the dimension arc in season 3.
Empathy Pet: Often appears to Jaden, particularly to express concern.
Evil-Detecting Dog: Will always tell Jaden when something is wrong or if a friend is in trouble.
New Powers as the Plot Demands: Several times in the series. Most notable when Winged Kuriboh's light allows Jaden to talk to the Crystal Beasts, separate from Yubel, to save Jesse. Also, when Winged Kuriboh sends Jaden back in time to duel Yugi.
Surrogate Soliloquy: Naturally, being an invisible duel spirit, other characters would comment what Jaden was speaking to.
Elemental Heroes/Evil Heroes
Judai's core deck theme revolving around low-level monsters based on comic book superheroes, they can fuse together and use support cards to perform powerful combos.As part of Judai's fall to darkness in Season 3, his deck is corrupted, giving him darker alternate artworks for the base Elemental Heroes and entirely replacing their Fusions with darker Evil Hero monsters, who can only be summoned with Dark Fusion. The Evil Heroes sacrifice the flexibility of the Elemental Heroes (specifically by requiring a specific Fusion card) in exchange for more raw power in the form of stronger effects compared to their counterparts.
The Smurfette Principle: Burstinatrix was the only female member at first (the original version of her card even says so) until more female members were added later. (They never appeared in the anime, however, but did appear in the manga.)
An archetype based on cards Judai designed as a child, they were sent into space on a time capsule and infused with cosmic energy. They consist of the six base Neo-Spacians, Elemental Hero Neos, and some other non Neo-Spacian cards that still fit the general theme/idea, like Rallis the Star Bird.
Spirit Advisor: Of all the Neo Spacians, Aqua Dolphin fits this trope the most. He is the first Neo Spacian that Jaden meets and provides emotional support in times of need. Like the time Jaden couldn't see his cards after losing to Aster, and Aqua Dolphin introduces him to his new deck and restores his love of dueling. Also, encouraging Jaden to use Polymerization in the last duel with Yubel.
Spotlight-Stealing Squad: Once Judai picks them up in Season 2 most of his victories in the rest of the series come about due to a Neo-Spacian, Neos, or some fusion of the two.
Talking Animals: All the Neo Spacians can speak and have different personalities.
Dark Is Not Evil: Once he turns back to good he still uses the Cyberdarks. However, the only usage he makes of the Cyber Dragons while evil is as fodder to power up the Cyberdarks, so Light Is Not Good is mostly averted.
Dragons Up the Yin Yang: Played straight as can be with the Cyber Dragons and Cyberdarks representing the two halves of the symbol.
Expy: Ryo's status as an Expy of Kaiba is hard to dispute when Cyber End Dragon looks like a combination of Blue-Eyes Ultimate Dragon and Blue-Eyes Shining Dragon. By the same token, Cyberdark Dragon could be considered an Expy of Red-Eyes Black Dragon.
Meaningful Name: "Ojamashimasu" is a Japanese phrase roughly translating as "pardon me for interrupting/intruding". It's why the flavor text on the card mentions the Ojamas always butt in on things, and why their stronger cards fill up the opponent's Monster Zones.
Anti-Hero: When one considers their play-style and how they use their effects, type lll.
Anti-Magic: Why is Destiny Hero Plasma the Ultimate D Card? When used with the spell D-Force, Plasma negates all monster, spell and trap card effects used against itself and the user, this plus Vampiric Draining.
Back from the Dead / Resurrected for a Job: A major theme of the Destiny Heroes is that they resurrect themselves from the graveyard to provide several flexible strategies, such as collecting enough monsters to summon stronger ones (Dogma and Plasma), reinforce their offence (Dread Master), draw more cards (Disk Commander), and even summon themselves to the opponents field to provide an opening for damage (Departed).
Hellhole Prison: Clock Tower Prison, considering Dreadmaster needs 4 turns before being summoned.
Martyrdom Culture: Considering most of these monsters have low attack points and effects that revolve around being revived or summoning other monsters once they are destroyed, the Destiny Heroes can almost certainly be considered this trope.
Pyrrhic Victory: The Destiny Hero cards often employ strategies that involve sacrificing weaker cards in order to achieve successful results. Using several tributes to summon the strongest monsters, monsters when destroyed provide the player with useable strategies later on (Fear Monger, Double Dude, etc), and cards that are mostly intended for this purpose. Aster was even willing to sacrifice Plasma for a combo to win against otherwise impossible odds in his duel with Amon.
Shout-Out: Many to English literature, such as Double Dude being based on Jekyll and Hyde.
Time Master: Their effects revolve around time control, with effects relying on doing things on later turns. For example, Diamond Dude lets you discard the top card of your deck, and if it's a Spell you can activate its effect on your next turn.
Thanatos Gambit: Aster's father created D-Hero - Dark Angel in the event Aster would require a counter for Plasma. The trope fits very well because Aster's father was manipulated by the Light of Destruction to create Plasma in the first place.
Vampiric Draining: Plasma can steal a monster from the opponent, increase it's attack points by half the monster's, and acquire it's special effects.
Your Soul Is Mine: Plasma can drain the souls of its victims, not just monsters in the card game but actual human souls, as seen with Aster's father and Doctor Collector. Fridge Horror when shown that Aster continues to do this when he has Plasma defeat one of the Supreme King's goblins.
The "Crystal Beasts", whose original name is "Gem Beasts", are all animals which have each a different kind of gem in their bodies. Their different gem colors form the seven colors of the rainbow, reflecting the name and design of their ace monster, "Rainbow Dragon". These rare cards were won and used primarily by Jesse Anderson.
All Your Colors Combined: Rainbow Dragon uses an effect called Rainbow Overdrive which uses all the Crystal Beasts on the field to boost it's attack further.
Animal Motifs: Each of the 7 Crystal Beasts are based on an animal.
Chekhov's Gun: The Rainbow Dragon card that Jesse was searching for in the 3rd season turned out to be the key to returning duel academy back to the real world.
Guardian Entity: The Gem Beasts and Rainbow Dragon protect Jesse's mind from anyone that may want to harm him. Yubel is able to possess Jesse by somehow corrupting Rainbow Dragon and enslaving the Crystal Beasts.
Kick the Dog: Yubel does this to Topaz Tiger in a duel with Jaden.
No Celebrities Were Harmed: In the dub, their voices and personalities are based on American celebrities (or rather, pretty bad imitations of them) which is odd, considering they supposedly originated centuries ago in Rome. To wit:
Three powerful and dangerous cards sealed under Duel Academy - Uria, Lord of Searing Flames; Hamon, Lord of Striking Thunder; and Raviel, Lord of Phantasms.
Awesome but Impractical: At least with the God Cards, getting three monsters onto the field was fairly feasible. But good luck summoning these guys, whose summon requirements are to tribute three Continuous Traps, three Continuous Spells, and three Fiend-type Monsters.
Awesome But Practical: On the other hand, if you set up your deck specifically around them (for example, if you run a pure Fiend Deck for Raviel)...