Professor Oak is a well-known character from the Pokémon series, serving as a Pokémon researcher and mentor to aspiring trainers. He is recognized for his extensive knowledge of Pokémon species and their habitats. Professor Oak often provides new trainers with their first Pokémon and a Pokédex, a device used to catalog Pokémon information. He resides in the town of Pallet and is a key figure in the early stages of many trainers' journeys. His character is often depicted as wise and supportive, guiding trainers like Ash Ketchum and Gary Oak as they embark on their adventures in the Pokémon world.