A Scientist (Japanese: はぐれけんきゅういん Researcher Gone Astray in Generations I and II, けんきゅういん Researcher in Generations III and IV) is a type of Pokémon Trainer that first debuted in the Generation I games. They are men in lab coats and glasses. They are often (but not always) aligned with Team Rocket, as shown in Generations I, II, and III, and with Team Galactic, as shown in Generation IV.
In the English version of Pokémon Colosseum and Pokémon XD: Gale of Darkness, Scientists are known as Researchers, while Scientists working for Cipher are called Cipher R&D in XD. In Pokémon Stadium, the scientist is known as Lab Man.