High Quality Content by WIKIPEDIA articles! The Tenctonese, also known as Newcomers, are a fictional humanoid species in the Alien Nation, television series and earlier film, as well as the later Alien Nation telefilm series. They are from the planet Tencton, though references to numerous slave colonies throughout the series and telemovies indicate that they are widespread beyond their own planet. They are easily distinguished from humans by their hairless, spotted heads and lack of external ears. According to the show, more than a quarter of a million Tenctonese reside on Earth in the United States, mostly in the Los Angeles area.