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If you were looking for the other character whose Japanese name is Sanpei, see Steveland.
サンペイ Sanpei
Gender Male
Hometown Unknown
Region Kalos
Relatives Ippei and Nihei (brothers)
Trainer class Trainer
Anime debut A Rush of Ninja Wisdom!
English voice actor Chris Patton
Japanese voice actor Yuuko Sanpei

Sanpei (Japanese: サンペイ Sanpei) is a recurring character in the Pokémon anime who first appeared in A Rush of Ninja Wisdom. He is a ninja hailing from a ninja village. He has two older brothers. His eldest, Ippei, who is the strongest of the ninja village, and his second brother Nihei, who is the second strongest of the ninja village.


As Ash was training with Froakie, their training was criticized by Sanpei, who had concealed himself behind a veil on a tree. Sanpei revealed himself, but quickly disappeared with his "leaf concealment" technique. Startled, Ash and Froakie tried to look for Sanpei but weren't able to spot him anywhere, until they noticed a Frogadier in a tree. Sanpei then joined with the Frogadier and he introduced himself to the group. Ash quickly challenged Sanpei to a battle with Froakie against Frogadier, which Sanpei accepted as he was also looking for a battle opponent.

Although Froakie tried many attacks, Frogadier proved to be too quick. As Froakie tried Water Pulse, Frogadier disappeared in a flash. Concentrating on finding Frogadier's current location, Froakie thought it had found it, only to find out it was a decoy. The real Frogadier appeared out of a nearby pond and the fight went on with both using Water Pulse. Sanpei then ordered Frogadier to use Quick Attack, which was too fast for Froakie to keep up with. Ultimately Frogadier landed the hit and Froakie was defeated.

Sanpei helped Froakie recover by giving it medicine. As Sanpei was about to leave, Ash asked him to help Froakie learn Quick Attack. Sanpei accepted Ash's request, but assured him his teachings are strict. Sanpei had Froakie go through various stages of training, such as jumping from spot to spot and running across the surface of the water. After this, the group and Sanpei decided to have a meal together. Sanpei then told Ash more about his background.

As they continued their training, Team Rocket suddenly appeared in a giant ninja robot. They managed to grab Frogadier and Pikachu. As Froakie now tried to battle Team Rocket on its own, the training with Sanpei pulled off and Froakie managed to execute Double Team. With a Water Pulse, it managed to free Frogadier and Pikachu. Ash and Sanpei then blasted off Team Rocket together with a double Water Pulse from Froakie and Frogadier. Now showing more respect for Ash than when they met, Sanpei said his farewells to Ash and the group as he went on his way.

He reappeared in A Stealthy Challenge! with his Frogadier, who has evolved into a Greninja.


Sanpei's Greninja

Sanpei's Greninja
Froagadier → Greninja
Greninja is Sanpei's only known Pokémon. It was first seen as a Frogadier sitting on a branch, which made Ash decided to look for its Trainer. After meeting Sanpei, Ash used his Froakie to battle Frogadier, but was defeated because Frogadier was too fast to keep up with. Frogadier aided Froakie in its training to learn Quick Attack. Frogadier showed its various techniques, such as jumping quickly from spot to spot and quickly running across the surface of the water. Eventually Team Rocket attacked with a giant ninja robot, which Frogadier and Froakie teamed up to defeat with a double Water Pulse. Afterwards it said its farewells to Froakie and the group as it and Sanpei went on their way.

It reappeared in A Stealthy Challenge!, as a Greninja.

Greninja's known moves are Smokescreen, Quick Attack, Bubble, Water Pulse, Double Team, and Water Shuriken.

Debut A Rush of Ninja Wisdom
Voice actors
Japanese Kiyotaka Furushima
English Billy Bob Thompson

Voice actors

Language Voice actor
Japanese 三瓶由布子 Yuuko Sanpei
English Chris Patton
Italian Stefano Pozzi
Polish Adam Pluciński
European Spanish Javier Lorca


  • The names of Ippei, Nihei and Sanpei are a play on the Japanese words for one, two, and three: "ichi" (一), "ni" (二) and "san" (三).
  • He shares his name with the surname of his Japanese voice actor.

Project Anime logo.png This episode article is part of Project Anime, a Bulbapedia project that covers all aspects of the Pokémon anime.