What is the name of the Pokémon Pokopia character who serves as Ditto’s professor?

Professor Tangrowth is the character who serves as Ditto’s professor in Pokémon Pokopia. This unusual researcher is a Tangrowth who studies the damaged environment and investigates the mystery of the vanished humans and Pokémon.

After Ditto assumes a human-like form, it encounters Professor Tangrowth in the abandoned world. Tangrowth gives the adventure an investigative framework: the pair restore habitats, observe environmental changes, and search for clues about the catastrophe that made the region uninhabitable.

Professor Tangrowth is not Professor Oak in disguise and is not one of the human professors from the main Pokémon games. The title is a role held by a Pokémon character specific to Pokopia’s story. That choice reflects the game’s broader premise, in which Pokémon must organize, survive, and rebuild after humanity has disappeared.