Gallaxhar is the main antagonist in the DreamWorks film, Monsters vs. Aliens. He was voiced by Rainn Wilson. He was a half-Humanoid and Half-Kalmar extraterrestrial being who attempted to conquer Earth and rename it "Gallaxhar‘s planet" to rebuild his former civilization by exterminating humans and enslaving the survivors. He is briefly mentioned by Coverton in the TV show's first episode, Welcome to Area Fifty-Something. Gallaxhar is awoken from his cryogenic sleep when his computer detects Quantonium. Gallaxhar then sends a gigantic Robot Probe to extract and bring it to him. When the monsters defeat his probe, he almost sends another probe, but his computer tells him that the "carbon-based life-form" (Susan, a.k.a. Ginormica) is now too strong, and that the Quantonium can not be retrieved by a robot. He comes to Earth and sends a message to the citizens of Earth, then captures Susan, and in the process blasts Insectosaurus with his ship's phasoid cannon. When Susan is on board the ship, she frees herself, and Gallaxhar then flees to his Extraction Chamber, where he gets the Quantonium out of Ginormica. He succeeds and clones himself four times. This is enough for him to create an evil clone army of himself. After Dr. Cockroach destroys his computer by stepping on the color buttons in the correct order while dancing, the self destruct system sounds. He attempts to escape, but is once again forced into combat with Ginormica. She then gets her Quantonium back and escapes on Insectosaurus (who is now a butterfly). Gallaxhar tries to escape in an escape-pod, but fails and presumably dies in the explosion. He is voiced by Rainn Wilson.