TV-Series
Description
Professor Oak, whose full name is Samuel Oak, is a Pokémon researcher based in Pallet Town in the Kanto region, and he appears as a central supporting figure in the anime series Pokémon Chronicles. He runs a research laboratory where he studies Pokémon behavior and ecology while also caring for many Pokémon entrusted to him by trainers from the area. The laboratory grounds are large and designed to resemble natural habitats, allowing the Pokémon in his care to live freely in environments arranged by type.

In terms of background, Oak was once an active Pokémon trainer in his youth, traveling widely with a sketchbook, observing and drawing Pokémon while also taking part in battles. A formative childhood experience involved rescuing an injured Celebi and being briefly carried forward in time, an adventure that deepened his connection to Pokémon and shaped his later interests. Eventually he left competitive training behind and became a researcher, rising to become one of the world's most respected authorities on Pokémon and contributing to the invention of the Pokédex, the recording device used by trainers to document the species they encounter. He is also credited with proposing the system of classifying Pokémon by type.

His personality is warm, patient, and approachable, and he is well regarded by both fellow researchers and young trainers. He can be absent-minded at times, occasionally forgetting small details, but his knowledge of Pokémon is consistently dependable. He has a playful side, including a fondness for composing haiku, a habit that sometimes interrupts his work or his conversations. Despite his seniority and reputation, he treats others with kindness, speaks to trainers in a supportive and encouraging way, and shows genuine affection for the Pokémon under his care.

Oak's motivations center on advancing the understanding of Pokémon, especially the relationship between humans and Pokémon, and on helping new generations of trainers begin their journeys. He provides first partner Pokémon to trainers from Pallet Town, supports them with information and advice, and takes responsibility for the Pokémon they leave behind while traveling. His dedication to Pokémon welfare is also evident in his willingness to shelter, heal, and protect Pokémon in need.

In the story of Pokémon Chronicles, Oak takes on the role of a mentor and anchor figure for the younger characters. Several episodes place him at the center of events in and around his laboratory. In one storyline he is kidnapped by members of Team Rocket who want to force him to reveal the locations of rare Pokémon during his radio program, and he is freed through the efforts of his friends and a young trainer. In another episode, his laboratory becomes the target of a Team Rocket plot to steal every Pokémon stored there, and he works alongside his assistant to defend them. He is also shown preparing to give a newcomer named Gilbert his first Pokémon when an unexpected Tauros stampede throws the laboratory into chaos, and in another episode he is impersonated by a Team Rocket member and must prove his identity. Throughout these events, Oak demonstrates trust in his companions, composure under pressure, and a willingness to let younger people share in his work.

Among his key relationships, his bond with his assistant Tracey Sketchit is one of the most prominent in the series, as the two work together daily and rely on each other when trouble arises. He is also the grandfather of Gary Oak, a talented and confident trainer who serves as a rival to Ash Ketchum, and Oak shows pride in his grandson while also being honest about his shortcomings. His friendship with Ash and Ash's family is close, and he was the one who gave Ash his partner Pikachu. He maintains professional ties with other researchers such as Professor Elm, and he co-hosts a popular radio program with DJ Mary, a role that has made him well known beyond the Kanto region. He also shows generosity toward other young trainers, such as when he gives May a Squirtle that had chosen to stay with her.

In terms of development, the Chronicles episodes show a more personal side of Oak beyond his scientific authority. He becomes more reliant on and appreciative of the help of his younger associates, he takes direct action to protect the Pokémon in his care, and his playful and poetic tendencies are shown alongside his serious responsibilities. While he does not undergo a dramatic personal transformation, the series reinforces his identity as a figure who is not only a scholar but also an active protector, mentor, and friend.

His notable abilities include an encyclopedic knowledge of Pokémon species, their behaviors, habitats, and evolution, which he regularly shares with others, as well as his role in creating and refining the Pokédex. His background as a former trainer allows him to hold his own in battle when necessary, and he is shown commanding Pokémon such as Dragonite and Pidgey in confrontations, understanding that a Pokémon's strength is not determined by its size. He is also an engaging communicator, able to present scientific information to the public through radio and television in an accessible and entertaining way, and his ability to capture the interest of listeners reflects his broader gift for passing knowledge on to others.
Cast