A physician trained at the Suk School of Medicine on Kaitain, identifiable by a diamond tattoo on the forehead and hair bound by a silver or gold ring. Suk doctors underwent Imperial Conditioning, a rigorous programme begun in early childhood that was believed to make them incapable of taking human life, ensuring they could be trusted to attend the Imperial Family and Great Houses. The conditioning was thought to be unbreakable until Dr Wellington Yueh's betrayal of House Atreides proved otherwise, shattering the myth and eventually contributing to the school's decline.