Commander Lyle Tiberius Rourke

Commander Lyle Tiberius Rourke is the main antagonist in Atlantis: The Lost Empire. He was the commander of a previous mission to Iceland where Milo Thatch's grandfather assisted. In 1914 he is hired by Preston B. Whitmore in another expedition to Atlantis with his second-in-command Helga Katrina Sinclair. After escaping from a robotic Leviathan in the city's gates, Rourke and the team are taken to the king's room, where he asks to spend the night. After Milo and Kida swim while learning about Atlantis's heart, they re-surface only to discover that Rourke became mercenary. After Kida is fused with the Heart, he takes off with Helga and his soldiers, but Atlantis's citizens, Milo and the rest of the team chase him to a volcanic crater. Rourke attempts escaping in a baloon, trowing Helga out to "relieve weight", while fighting Milo with an axe. He gets scratched by a crystal shard and turns into a statue, but still manages to move towards Milo. He is finally destroyed when Milo overweights the metal structure he's standing, crushing Rourke in the baloon's propeller.