In school Tommy is an outsider, but he finds completely okay. So he can pursue alone his hobbies: caramels, video games, caramels. In this order. One day, a spaceship crashes with five aliens in Tommy's lighthouse, his life changes abruptly. Dinko and other aliens have come to help Tommy. Although he has not asked for help. Dinko who calls the Earthling lovingly "Tommy of the earth", is everyone's best friend. And when he's with his buddies already there, they can stay that way.
In the English language, Tommy is spoken by Charles Adler. In the German language, he is spoken by Hans-Jürgen Dittberner. In the French, he is spoken with David Scarpuzza (Season 1), and Hypolite de Poucoues (Season 2).