Did you know Ben Tennyson’s hometown of Bellwood has a huge, thriving city of aliens right underneath it? Yep, that’s the place known as Undertown. All kinds of aliens live there, from scary bad guys to simple merchants just trying to make a living. Meet the denizens of Undertown and catch up with Ben’s latest adventures on Ben 10 Omniverse every Saturday at 9/8c on Cartoon Network!
Who’s your favorite alien in Undertown?