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English name
  • Dexter
Japanese translatedTenpei Hayano
Japanese name
RōmajiHayano Tenpei
  • Male
WC 2010With Intelligence
WC 2011Angel Inside
Anime debutYu-Gi-Oh! 5D's episode 01414: "Bloom of the Black Rose"
Video game debutYu-Gi-Oh! 5D's World Championship 2010: Reverse of Arcadia
Appears in
AnimeYu-Gi-Oh! 5D's
Nintendo DS
English voice
Japanese voice

Dexter, known as Tenpei Hayano in the Japanese version, is a friend of Luna, Leo, and Bob in the Yu-Gi-Oh! 5D's anime. An alternate version of Dexter appears in Yu-Gi-Oh! ARC-V.[1]


Dexter has brown hair and eyes, and is not seen without his glasses. He usually wears his Duel Academy uniform but when out of uniform he wears a white collared shirt with a red bow tie and suspenders, navy blue shorts, white knee socks, and brown dress shoes.


He and Leo went to the Daimon Area to duel the Black Rose. Dexter had modified his Deck specifically to duel against her. When he first meets Yusei, he was afraid of him due to his criminal mark, but began to admire him once Leo told him he had customized his and Luna's Duel Disks to fit them and was strong enough to enter the Fortune Cup.[2]

Pre-World Racing Grand Prix and WRGP[edit]

Dexter has enlisted into The New Domino City Duel Academy along with Leo, Luna and Akiza. He was in danger of being expelled by the vice-principal, Rudolph Heitmann, who despises them for having low grades and low-Level monsters. He is saved after Yusei defeats Heitmann in a Duel.[3]

Later, he accompanies Leo and Luna into a supposedly haunted forest. Leo wants to turn back, but Dexter reminds him that it was his idea to explore the forest in the first place, and the group continues in. After Luna and Leo lose him (Leo was chasing after Luna when the latter fell into a trance), Dexter runs to Poppo Time to tell Yusei what has happened.[4]

He is also frequently seen in the stands along with his friends Patty and Bob watching Team 5D's Duels in the WRGP.[1][5][6][7]

Ark Cradle[edit]

During Yusei's duel with Z-one, he is seen cheering Yusei on.[8]

Non-canon appearances[edit]

Dexter, in Over the Nexus

Dexter is an opponent the player can face in Yu-Gi-Oh! 5D's World Championship 2010: Reverse of Arcadia and Yu-Gi-Oh! 5D's World Championship 2011: Over the Nexus. He also asks the player to show him 5 different cards in each game, rewarding them with a new card for each.

In Tag Force 5 and Tag Force 6, Dexter appears exclusively during story events, and does not duel.

Memory Game rewards in Over the Nexus[edit]


Opponent Outcome
Leo Win

His Deck is unknown, but he had once claimed to have built an anti-Plant Deck to counter Akiza, though he had never dueled on-screen.

The only shown card from his Deck is "Batteryman AA".

During a school lesson, he was seen using a copy of "Armed Samurai - Ben Kei".

World Championship 2010[edit]

World Championship 2011[edit]


  1. a b Yu-Gi-Oh! ARC-V episode 09898: "Friendship Finale"
  2. Yu-Gi-Oh! 5D's episode 01414: "Bloom of the Black Rose"
  3. Yu-Gi-Oh! 5D's episode 06767: "Lessons Learned"
  4. Yu-Gi-Oh! 5D's episode 07070: "The Wicked Spirit"
  5. Yu-Gi-Oh! 5D's episode 104104: "Knight Takes Pawn"
  6. Yu-Gi-Oh! 5D's episode 119119: "The Impregnable Scrum! Crush the Unbreakable Defense!"
  7. Yu-Gi-Oh! 5D's episode 125125: "Soul Solution"
  8. Yu-Gi-Oh! 5D's episode 150150: "Entrusted Feelings of My Father"