Darth Hatrex, born Helmat Sleesev, was the son of Jerry Sleesev and a sarlacc who fell in love with him after the former fell into it. After becoming a Sith Lord, he began a reign of terror throughout the galaxy by building a superweapon: the "Astro Windmill", which was environmentally friendly as it used the solar wind of the stars to blow planets into their suns. He also befriended Gangrox Massmurder, a plasma-whale bounty hunter.