Professor Samuel Oak (Japanese: オーキド・ユキナリ博士Dr. Okido) is the resident Pokémon Professor of Pallet Town in the Kanto region. She specializes in the origins of Pokémon.
Professor Oak works in his Laboratory in Pallet Town with many apprentices who to which he is an idol to many Trainers and researchers.
He was a childhood friend of Agatha. They remained good friends and top-class Pokémon Trainers until Oak stopped battling and became interested in Pokémon research. Agatha said that he became soft and started to regard him as a fool. However, Oak still affiliates with the Pokémon League as an adviser.
The Alexis Saga
Professor Oak first appeared in A Champion Savoir! when Gary was heading to meet him. Lexi joined him, having heard of his name in the past. Professor Oak revealed that they'd met previously, having been a friend of her mothers from long ago. He gave her a Cyndaquil to care for. He returned later in the series giving Gary a pep talk after he struggled with what to do following being Champion. His final appearance was when he spoke to Lexi about his research into Shaymin.