Cleon XII

Cleon XII is a main character in the TV series Foundation. He is portrayed initially by Lee Pace, and afterward by Terrence Mann.

Cleon XII is the twelfth Emperor of the Genetic Dynasty, ruling on the middle throne of the Galactic Empire as Brother Day at the time of Hari Seldon's arrest and the subsequent founding of the Foundation. He is capable of being charming but is also prone to volcanic eruptions of anger.