Aaron (Elite Four)

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リョウ Ryō
Diamond Pearl Aaron.png
Art from Diamond and Pearl
Gender Male
Eye color Green
Hair color Green
Hometown Unknown
Region Sinnoh
Trainer class Elite Four
Generation IV
Games Diamond, Pearl, and Platinum
Elite Four of Pokémon League (Sinnoh)
Specializes in Bug types
Anime debut A Trainer and Child Reunion
English voice actor Christopher C. Adams
Japanese voice actor Kenshō Ono
Chinami Nishimura (child)

Aaron (Japanese: リョウ Ryō) is a Bug-type Trainer and member of the Sinnoh Elite Four.

In the games

In Pokémon Diamond, Pearl, and Platinum, Aaron is the first member of the Sinnoh Elite Four.


Pokémon Diamond and Pearl

Pokémon Platinum


  • Before battle
"Hello! Welcome to the Pokémon League! I'm Aaron of the Elite Four. It's good to meet you. Oh, I should explain, I'm a huge fan of bug Pokémon. Bug Pokémon are nasty-mean, and yet they're beautiful, too... Would you like to know why I take on challengers here, in this room? It's because I want to become perfect, just like my bug Pokémon! Ok! Let me take you on!"
  • When last Pokémon is at critical health
"Not yet! Your first Pokémon League victory doesn't come easily, kid."DP
"It's not over yet! A League Elite Four can't give up!"Pt
  • Being defeated
"I will now concede defeat. But I think you came to see how great Bug-type Pokémon can be. I hope you also realized why you're up against in the Pokémon League. Battling is a deep and complex affair..."
  • After being defeated
"I lost with the most beautiful and toughest of the bug Pokémon... We lost because I wasn't good enough... That's it! Back to training camp! Let's hear it for me! No... That was wrong... Anyway... Go on to the next room! Three Trainers are waiting for you. They are all tougher than me."
"Go on, go to the next room. I'm going to become a top-level Trainer who can't be outclassed with my beautiful and tough bug Pokémon!"


Spr DP Aaron.png Spr Pt Aaron.png Aaron OD.png VSAaron.png
Sprite from
Diamond and Pearl
Sprite from
Overworld sprite from
Diamond, Pearl, and Platinum
VS sprite from

In the anime

Aaron in the anime
Aaron when he was younger

Aaron was briefly mentioned by Lucian in An Elite Meet and Greet. He then debuted in A Trainer and Child Reunion!, where he was shown to be preparing for his championship battle against Cynthia. Finding out that Ash and his friends know Cynthia personally, he took them to his training center.

There, he revealed that a Wurmple was his first ever Pokémon and friend when he was young but due to his anger at it for losing a match, he abandoned it. He regretted it later and from then on tried his best to train hard and to understand Bug-type Pokémon so that the same incident would not happen again. He eventually encountered it again as a Beautifly at the end of the episode, following a battle against Team Rocket.

He was seen again on television, one episode later, having his battle with Cynthia at the Champion League but ultimately losing.

Aaron made a cameo appearance in the ending credits of Zoroark: Master of Illusions.


This article is missing information on this character's English voice actor and Japanese voice actor.
You can help by adding this information.

This listing is of Aaron's known Pokémon in the anime:

Aaron's Beautifly
Wurmple → Silcoon → Beautifly
Main article: Aaron's Beautifly

Aaron first encountered his Beautifly as a Wurmple when it helped him down from a high tree. They became very close friends, but finally Aaron became irritated that it always lost and left it behind. When he later returned to the place where they had seen for the last time, Wurmple was gone.

The same Wurmple returned in A Trainer and Child Reunion!, now having evolved into a Beautifly. The meeting place was just besides the very same tree where they had first met. It told how after Aaron had abandoned it, it had started training by itself. Beautifly helped Ash and company along with Aaron to get rid of Team Rocket that had tried to steal Aaron's Pokémon. After this Aaron took Beautifly back to his team.

Aaron used Beautifly again in the next episode in his battle against Cynthia as his last Pokémon, sending it against Cynthia's Gastrodon. However, Beautifly was finally knocked out by Gastrodon's powerful Stone Edge.

Debut A Trainer and Child Reunion!
Voice actors
Japanese Kiyotaka Furushima
English Michele Knotz
Aaron's Skorupi
There's not much known about Aaron's Skorupi as it has never been seen battling, but like all of Aaron's Pokémon, it seems to be a very good friend with him. Aaron usually seems to keep Skorupi out of its Poké Ball, and lets it follow him or ride on his shoulder.

None of Skorupi's moves are known.

Debut A Trainer and Child Reunion!
Voice actors
Japanese Katsuyuki Konishi
Aaron's Drapion
The first time Drapion was seen was when Aaron was demonstrating his Pokémon's powers before his battle with Cynthia. When Drapion got caught by Team Rocket along with Aaron's other Pokémon, it went against Jessie's Seviper, but got badly hurt from Seviper's Poison Tail. Later it was however able to defeat Seviper with a Hyper Beam.

During Aaron's battle against Cynthia, Drapion was sent out to face Cynthia's Garchomp, but was defeated off-screen.

Drapion's known moves are Pin Missile and Hyper Beam.

Debut A Trainer and Child Reunion!
Aaron's Vespiquen
Aaron used Vespiquen along with his Drapion during his power demonstration. When captured by Team Rocket, she got hurt badly by James's Carnivine's Bullet Seed, but was later able to defeat it with a Slash.

Vespiquen's known moves are Slash and Gust.

Debut A Trainer and Child Reunion!
Voice actors
Japanese Chinami Nishimura

Voice actors

Language Voice actor
Japanese 小野賢章 Kenshō Ono
西村ちなみ Chinami Nishimura (child)
English Christopher C. Adams
Czech Vojtěch Hájek
Finnish Petri Hanttu
Norwegian Trond Teigen
Polish Grzegorz Drojewski
Brazilian Portuguese Yuri Chesman
Spanish Latin America Javier Olguín
Spain Ricardo Escobar

In the manga

In the Pokémon Adventures manga

Aaron in Pokémon Adventures

Aaron, along with Lucian and Bertha, appear during the Platinum chapter, having been enlisted by the Pokémon Association to decipher Charon's notebook that was stolen by Diamond's Kit. Together, they figure out the hidden information inside the book and give it to Diamond and Pearl so they can use it to stop Charon from capturing the Legendary Pokémon of Sinnoh.


On hand
Aaron's Drapion
Drapion is the only known Pokémon in Aaron's possession. It was used as a seat for Aaron while he used his laptop.

None of Drapion's moves are known.

Debut Tackling Togekiss

In the Pokémon Diamond and Pearl Adventure! manga

Aaron in Pokémon Diamond and Pearl Adventure!

Aaron makes a brief appearance in Gathering of the Legendary Pokémon!, watching Hareta and Koya's battle from the audience, along with Bertha and Lucian.

In the Pocket Monsters DP manga

Aaron in Pocket Monsters DP

Aaron appears in the chapter Clefairy's Pokémon Center is Super Useful!? of the Pocket Monsters DP manga. He is seen taking his Stunky to a Pokémon which Red and Clefairy becomes in charge of. He reads a book while waiting for Stunky to feel better. However, the treatment Clefairy gave it was ruined by Stunky falling into the treatment machine and this failure made Stunky's condition worse. Aaron didn't like what Clefairy did after finding out about this. After Stunky used Poison Gas on Red, his Pokémon, and Professor Oak, both Aaron and Stunky leave the Pokémon Center.


Aaron's Stunky
Stunky was injured during its debut in which Aaron takes it to a Pokémon Center in which Red and Clefairy were running at the time. Clefairy takes care of it by putting it down on a machine. Stunky accidentally falls inside which ruined the treatment and Stunky became worse than before. Aaron didn't like what Clefairy did and ran off with Stunky after Stunky used Poison Gas on Red, his Pokémon, and Professor Oak.

Stunky's only known move is Poison Gas.

Debut Clefairy's Pokémon Center is Super Useful!?

In the TCG

This listing is of cards mentioning or featuring Aaron or his Pokémon in the Pokémon Trading Card Game.

Aaron's Pokémon
Cards listed with a blue background are only legal to use in the current Expanded format.
Cards listed with a silver background are legal to use in both the current Standard and Expanded formats.
Card Type English
Rarity # Japanese
Rarity #
Drapion Pokémon 4 Darkness Rising Rivals Rare 17/111 Gallade Half Deck   010/018
Heracross Pokémon 4 Grass Rising Rivals Rare 24/111 Gallade Half Deck   002/018
Vespiquen Pokémon 4 Grass Rising Rivals Rare 35/111 Gallade Half Deck   003/018
Yanmega Pokémon 4 Grass Rising Rivals Rare 37/111 Gallade Half Deck   004/018
Scizor Pokémon 4 Grass Rising Rivals Uncommon 48/111 Gallade Half Deck   001/018
Other related cards
Card Type English
Rarity # Japanese
Rarity #
Aaron's Collection Su Rising Rivals Uncommon 88/111 Infernape vs Gallade SP Deck Kit   017/018



Language Name Origin
Japanese リョウ Ryō From 令法 ryōbu, Japanese Clethra
English, French, Italian Aaron From arachnid
German Herbaro
Spanish Alecrán From alacrán, scorpion
Korean 충호 Chungho From 충 (蟲) chung, bug
Chinese (Mandarin) 阿柳 Ā Liǔ Possibly from 山柳 shānliǔ, Clethra
Russian Аарон Aaron Transcription of English name
Vietnamese Ryou Transliteration of his Japanese name

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Elite Four
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