Dr. Emmanuel Klipse is the central antagonist of the Monsuno series. He was originally a scientist who worked alongside Jeredy Suno and Jon Ace, researching the creatures called Monsuno. After breaking away from his colleagues, he founded the organization Eklipse with the goal of using Monsuno power to achieve world domination. Klipse is a megalomaniac driven by an inflated sense of self‑importance. He believes himself to be a prophet of his own greatness and is entirely convinced of the superiority of his ideas. He is ruthless and willing to use any means, no matter how unethical, to achieve his objectives. His primary motivation is the acquisition of absolute power and recognition.

Throughout the series, Klipse serves as the main antagonist, opposing Team Core‑Tech in every season. He leads Eklipse and later the Eklipse Resistance. His key relationships include his former colleagues, who have become his enemies, and Six, a clone he created. Klipse commands several Monsunos, most notably Backslash, his primary partner, along with Odon, Acro, and formerly Toxic Ace. He also directs his organization’s production of aggressive Monsunos and oversees its illicit activities. In terms of development, Klipse remains a consistent adversary; he never reforms and only grows more extreme in his methods, adapting by developing new technologies or forming temporary alliances. His notable abilities include a high degree of scientific intellect, particularly in Monsuno essence and biotechnology, strategic leadership of a large criminal network, and effective combat control over his Monsunos, especially Backslash.