Testudo Oceanus is a fictional character from Kamen Rider Agito. He is one of the Lords, a group of powerful beings who judge and eliminate humans as part of their mysterious mission. Testudo is associated with the Turtle Lord, giving him a calm, durable, and imposing presence. He serves as an antagonist whose actions contribute to the larger conflict between humanity and the Lords, helping establish the series’ themes of evolution, destiny, and survival.