Brron, Mad King of Dark World (character)

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Brron, Mad King of Dark World
Brron, Mad King of Dark World
Corresponding cardBrron, Mad King of Dark World
English name
  • Brron, Mad King of Dark World
Japanese name
Japaneseあんこくかいきょうおう ブロン
Base暗黒界の狂王 ブロン
Furiganaあんこくかいのきょうおう ブロン
RōmajiAnkoku Kai no Kyou Ou Buron
Other language names
Brron, Folle Sovrano del Mondo Oscuro
Brron, Rei Louco do Mundo Escuro
  • Male
OrganizationDark World Army
TeamGraveyard Revival (WC 2008)
Anime DeckDark World
Other Decks
WC 2008
  • Portable Darkness
  • Sleepless Mind
WC 2009See My Dark Side
Anime debutYu-Gi-Oh! GX episode 135135: "Turning the Page, Part 1"
Video game debutYu-Gi-Oh! World Championship 2008
Appears in
AnimeYu-Gi-Oh! GX
Nintendo DS
English voice
  • Jamie McGonnigal
Japanese voice
  • Kentarou Itou
Brron, Mad King of Dark World (character)

Brron, Mad King of Dark World serves as the first main antagonist of the Dark World arc of the third season of Yu-Gi-Oh! GX.


Yu-Gi-Oh! GX[edit]


Being the leader of the Dark World creatures, Brron was responsible for the deplorable state of the second alternate dimension and oppression of its denizens. His right-hand man, Zure, oversaw Brron's will, detaining anyone who defied him in internment camps while killing duelists who could be threats to him. The executions occurred at his fortress and involved releasing monsters at disarmed duelists while Brron himself and his minions watched the spectacle. Demented and sadistic, Brron rules the alternate dimension as its vile dictator, and after learning of Jaden's presence in his domain, Brron orchestrated a plot that involved turning Jaden evil.

Due to an underhanded maneuver by his top subordinate, Zure, Brron had a clear advantage with his set of "Sinister Doctrine" cards because should one of them be activated one of Jaden's friends would be sacrificed. Eventually, Jaden defeated Brron in a fit of rage, but not before Alexis, Chazz, Atticus and Tyranno were all sacrificed. Only Syrus managed to avoid that fate. After his defeat, Brron mocked Jaden by saying that he would never see his friends again before dying. It was later revealed that Brron was simply one of Yubel's pawns, who used him to complete the integral part for her plan, the creation of the "Super Polymerization" card, and to simultaneously coax Jaden towards his descent into darkness (although it isn't stated how the two of them ever met, if they met at all).


In the dub, Brron's voice is high-pitched and he has a witch-like cackle to assert the fact that he is the insane king of Dark World.

World Championship 2008[edit]

Brron, Mad King of Dark World appears in the Darkness Duel World as part of the third Dark World Tag Team, with Reign-Beaux, Overlord of Dark World as his partner. After being defeated, Brron and Reign-Beaux are unlocked as Tag Duel opponents in Free Duel Mode.

World Championship 2009[edit]

Brron appears as an unlockable Single Duel opponent. He is unlocked when the player defeats Sekizato 5 times.



Brron plays a Dark World Deck, evil creatures whose latent abilities are activated when they are discarded by a card effect. He mainly focused on the gathering of the "Sinister Doctrine" cards which grants Brron access to his most powerful monster, "Colorless, Chaos King of Dark World", Summoned through the card, "Super Polymerization", although the Colorless card is not actually seen due to the fact that Brron could not offer Syrus through "Sinister Doctrine - Doubt". If the aforementioned strategy fails, Brron focuses on the Summoning and preservation of "Reign-Beaux, Overlord of Dark World".

World Championship 2008[edit]

  • Brron uses this Deck in Duel World.
  • Brron uses this Deck in World Championship Mode.

World Championship 2009[edit]


Opponent(s) Episode(s) Outcome
Jaden Yuki 135-136 Lose


  1. a b c d e This card can be seen when he searches his Deck to add a "Dark World" monster to his hand via the effect of "Dark Corridor" in episode 136.
  2. This card is sent from his Deck to the Graveyard via the effect of "Wicked Canon" in episode 135.
  3. a b c This card is sent from his Deck to the Graveyard via the effect of "Wicked Canon" in episode 136.
  4. a b This card is mentioned by Brron in episode 136.