Ansem the Wise is a character from the video game series Kingdom Hearts. He is known as a brilliant scientist and the former ruler of Radiant Garden. Ansem is recognized for his deep knowledge of the heart and his research into the nature of darkness. In the series, Ansem the Wise plays a crucial role in the backstory of several characters, including Xehanort and Riku. His experiments lead to significant events that shape the world of Kingdom Hearts, particularly concerning the balance between light and darkness.