Mad Gallant (マッドギャラン Maddogaranto?) is Satan Gorth's son and his heir to the Megabeast Empire. Juspion's antagonist throughout the series, he is capable of fighting him with his sword (similar to Juspion's) and with his black VTOL 6-legged insectoid walker/plane, the Juldbooma. He wears a reminiscent black Metal Tec Suit similar to Juspion's and can take on human form. Mad Galant is destroyed once by Juspion in the episode 29, but is soon resurrected by Gilza; in the penultimate episode of the series he has a climatic final battle with Juspion. After being deadly damaged by Juspion in this battle and furious by refusing to admit that a "simple human" (Juspion) could be stronger than a mutant (him), he turns himself into a giant Satan Gorth for a few moments, similar to his father's first f