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Professor Oak (anime)

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For the variant appearing in the games, see Professor Oak (game).

Professor Samuel Oak is a Pokémon researcher who was once a competitive Trainer, and is generally considered to be the best in his field of research.


Professor Oak is a middle aged Pokémon professor with gray hair and sports a light maroon polo shirt underneath his labcoat. He wears a brown belt supporting his beige pants along with matching brown loafers.


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Samuel Oak is most notable for his vast research facility, where he cares for and studies hundreds of Pokémon, including those owned by, but not currently traveling with, Trainers from Pallet Town. He has confidence in his grandson, Gary Oak, but more often joins Ash's mother and friends in cheering on Ash in his competitions.

In the novelizations written by Takeshi Shudō, Professor Oak comes from a prestigious family. He has two brothers, one is the mayor of Pallet Town and the other is the Post Master, and his grandfather was the first Trainer from Pallet Town to receive widespread recognition. According to Professor Elm, Professor Oak's studies and research mostly focus on how humans and Pokémon interact with each other.

Sammy Oak

Professor Oak as a child

He appears as a young boy, Sam (Japanese: ユキナリ Yukinari) in the fourth film, Celebi: Voice of the Forest. Ash befriends the young Oak, who, due to traveling from 40 years in the past, is around the same age as him. The revelation that Sam is Oak, while able to be speculated because Oak's first name was revealed in the second movie, The Power of One, comes only at the end of the movie, when Oak knows that Ash's friend's name was Sam despite Ash never telling him so, and Tracey finding the sketchbook in which young Sam drew Pikachu sleeping with Celebi in Oak's closet.

Oak lives up the road from Ash's mother and the two often appear together as they are very good friends. He currently lives with Tracey, who became his loyal assistant in The Rivalry Revival. Tracey and Prof. Oak are very passionate about studying Pokémon and are both artists.

He reappeared in XY140: Till We Compete Again!.

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On hand

016Pidgey AG anime

Gives to new trainers



Ash Bulbasaur
Bulbasaur *

Ash Totodile
Totodile *


Given away

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Please help the Pokémon Wiki by adding one.

No Image

Ash Pikachu

May Squirtle

No Image
Egg *

Cares for

Pokémon that Professor Oak cares for at his lab are the following:

Voice Actors

  • Dutch: Jon van Ernd
  • German: Achim Sauvage
  • Polish: Grzegorz Pawlak
  • Norwegian: Even Rasmussen
  • Hungarian: Akos Koszegi


See also

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