Professor Griffin (real name: Ronald Griffin) is a supporting character in Yu-Gi-Oh! Apocalypse and a major character in Yu-Gi-Oh! Ω. He is a young-aged professor in the Wisdom Duel School, where he is a professor of said school.


Professor Griffin is a tall, pale-skinned person, with crew cut-shaped hair. He often wears a khaki-colored hat and he often wears a sleeveless blue or green-colored T-shirt and blue jeans. While in the Duel School, he wears his Professor suit, which is a white blouse with a bow tie (and he doesn't wear his hat in the Duel School). His shoes are colored either red or yellow, while he resorts to the black color while on a Duel School. Like Vellian Crowler, he wears a Coat Duel Coat, similar to the design of Vellian's, but bearing the emblem of Wisdom Duel School, which is an owl.


Griffin is an innocent and caring person, and often cares for his students, and supports them when a serious matter happens with the students as a whole. When facing threats, such as the Gymnastic Group, he becomes more serious, decisive and willing to help his students, and even offers his own soul (after losing to Antonina, in a Tag Duel with Professor Fitzgerald, who won against Antonina) for the sake of his students. He bears an irreplaceable bond with Professor Fitzgerald, who was the first friend he met, and Ariel.


Yu-Gi-Oh! ApocalypseEdit

The only thing is known about the history of Professor Griffin is that he also graduated from Wisdom Duel School, and he was a genius student and duelist, scoring a record that was kept intact until Professor's Fitzgerald. After his graduation, Griffin remained in the island serving for the Duel School, until he found Professor Fitzgerald, being a genius duelist who was a fearsome duelist in the Duel School and often belittled his opponents after their loss. They bet each other into a duel, in which Griffin won by Summoning "Pokémon - Moltres EX". Later, Fitzgerald approved of Griffin as a friend, and they both shook hands.

Work in Progress


Professor FitzgeraldEdit

Several years after his graduation, rumors said that a new bully genius duelist appeared in the Duel School, called Donald Fitzgerald. He was almost unbeatable, and he often belittled his opponents. Griffin and Fitzgerald both bet into a duel which made Fitzgerald make up his mind, and realizing that bullying to others is not an acceptable way. After the duel, he and Fitzgerald shook hand and became comrades.

He and Fitzgerald became comrades, and serve as both professors and messengers to the students for upcoming threats, such as the Gymnastic Group, often participating in said battles.


Some time after Fitzgerald's collaboration, a new kind student appeared to the Duel School, named Ariel. Being become close to Fitzgerald and his advisory skills, he became comrades with Ariel and caring in an excessive matter about her in a deep way.


Fire-type Pokémon deckEdit

His first deck in Apocalypse is a Fire-type Pokémon deck, based off various Fire-type Pokémon monsters. Many of his cards are made by Trey, and all cards in all of his decks are part of his Pokémon-to-Yu-Gi-Oh! project. The Fire-type Pokémon deck utilizes a wide variety of Summoning mechanics, mostly Tribute Synchro Summoning, as well as Summoning an array of monsters. His frontline often has effects that destroy other monsters or inflicting effect damage to his opponent.

His deck was brought back to surface in Ω, with using his "Karmatic Knight" Equip Cards, "Karmatic Knight - Personality Changer" and "Karmatic Knight - Apocalyptical Deadlocker".

Grass-type Pokémon deckEdit

His second deck is a Grass-type Pokémon deck. His deck works in a similar manner as his first deck, but he has less Synchro Monsters inside. His cards aim at spinning, bouncing or banishing opponent's cards, or creating field advantage.

Steel-type Pokémon deckEdit

In Yu-Gi-Oh! Apocalypse: Graduation Special Chapter, he runs a Steel-type Pokémon Deck, centered EARTH Machine-Type monsters. They use a type of Counter called Machinery Counter, which aim towards opponent's monsters and he uses his higher-ATK monsters as a tool to make the Machinery Counters against your opponent. Unlike his other decks, this deck is centered entirely on Xyz Monsters.

Water-type Pokémon deckEdit

In Yu-Gi-Oh! Apocalypse - Jigen-Hen, Griffin runs a Water-type Pokémon deck. This deck is mostly mostly aims at field presence and advantage, as well as ATK-gaining effects. Unlike in most of his decks, he prefers the Special Summon Monster "Pokémon - Blastoise" for his plays, mostly for the versatility of its effects, but, like all of his decks, except his Steel-type Pokémon deck, it is centered on various Summoning mechanics.

Electric-type Pokémon deckEdit

Later, Griffin uses an Electric-type Pokémon deck. The deck is centered around swarming with different means (such as that of "Pokémon - Plusle" and "Pokémon - Minun"), declaring direct attacks (such as "Pokémon - Raichu") or producing a wide variety of Quick Effects.


  • This character is one of the few left-handed duelists. Other left-handed duelists include each of the Three Pure Nobles, Aporia, Paradox and Moon Shadow.
  • This character has similarities with Bastion Misawa.
    • Both players have different decks, mostly depending on the Attribute (for Misawa) or depending on the Pokemon types in Griffin's case.
    • Misawa duels with a deck they desire according to the situation, much like Griffin.
    • LHK stated that Professor Griffin will be "the Misawa of Yu-Gi-Oh! Apocalypse and, subsequently, Yu-Gi-Oh! Ω, a character that will duel with a lot of deck with the same finesse as Misawa does."
    • Both players are claimed to be Genius Duelists.
      • In fact, Griffin stated in a flashback that Misawa and Chazz Princeton are his idols in Dueling, as they use such a variety of combos and moves.
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