Planet Boy Papi (遊星少年パピイ, Yūsei Shōnen Papī) or Prince Planet in the dubbed version, is a Japanese anime series produced by Studio TCJ (now Eiken). It aired on Fuji TV and its network from June 3, 1965 to May 27, 1966 for 52 episodes.
Prince Planet Papy is from the planet Radion and a member of the Universal Peace Corps. He lands on Earth on a mission to determine if this world meets standards for membership in the Galactic Union of Worlds and assist its inhabitants during his stay. He adopts the identity of an Earth boy named Bobby and gains comrades who work together alongside him fighting forces of evil, both alien and terrestrial.