Ballchinian

The Ballchinians are a race of aliens who generally wear cloth masks to cover their face, as (at least in males of the species) they possess part of their genitalia below their neck, and attached to their chin, hence their name. They had what some may consider goofy hair, and seemed to wear out-of-style human clothing. Other features include a short face that made it appear squished together, puckered lips, semi-pointed ears, and hanging jowels and frequent urination

Although some were known to openly protest the efforts of mankind and the Men In Black by siding with a Kylothian named Serleena, it is not known if this was typical of their species, or if these were radicals.