Spacedemon is an actor and director alien that works in Hollywood.
He only appears in "The Star System Syndrome" when is interrogate by MIB for the disappearance of several alien actors. He became a prime suspect after revealing his hatred of the Predeterminator and Prey for stealing his spotlight, Etalffap for making a joke about him, and he can't stand the Astrotots; though Kay isn't convinced the Spacedemon is the culprit. It turns out he's not responsible for the disappearances after all, and it's discovered that the Astrotots are and finally he and MIB stop them. He takes a liking into Annet, the only Astrotot who realized her brothers have gone too far.