Edgar Celestial is the principal of Celestial High, and the great-grandson of the creator of Celestial High. He has a daughter that attends the school as well, named Tina. Edgar is a strict, yet fatherly man that cares for his students as he does his own child, however he can come off as strict to people that don't know him well.

Edgar has a soothing voice topped with a British accent. His voice is in the medium-low range, and he has a good control over his emotions, as he is often able to calm himself down easily.