Professor Oak (game)

Professor Oak (オーキド ユキナリ博士 Dr. Yukinari Okido) is a Pokémon Professor who resides in Pallet Town.

In the games
In Pokémon FireRed and LeafGreen and Pokémon Red and Blue, Professor Oak lives in Pallet Town and he is absent from his lab until you try to leave town, when he runs up to you and makes you come with him. He then lets you choose a Starter Pokémon. If you go to the mart, the store clerk will give you Oak's parcel. The Parcel contains a prototype Pokéball, bring it back to Oak and he will give it to you along with 5 Poké Balls. He sends you on your journey and all throughout he helps you by sending his aides out to give you items if you capture the right amount of Pokémon. In Pokémon FireRed and LeafGreen, he helps you when your rival challenges you for the first time.

In Pokémon Yellow, when the player steps into the grass they will encounter a Pikachu, which Oak captures and gives to you after your rival takes the Eevee that was intended for the player.

In Pokémon Diamond and Pearl, after you see each Pokémon in your Pokédex, Professor Oak will come and hand you the National Dex. He resides in the most southerly house in Eterna.

In Anime

Charmander → Charmeleon → Charizard