Xiahou Xuan

Joins the plot on a family argument — 'It was from fear of this man that my brother Xiahou Ba was forced to go over to Shu. If Sima Shi were destroyed, my brother could return. I belong to a family related to the rulers of the state for many generations, and I cannot sit still while a wretch ruins the government.' Cornered at the Donghua Gate, it is Xiahou Xuan who breaks first and says it out loud — 'we were crying because of your conduct, because you terrorize over the Emperor and are scheming to usurp the Throne!' — and then throws back his sleeves and strikes at Sima Shi with his fists before the lictors pull him off. Executed by waist-bisection with his clan.

Named in passing only, and executed last chapter, as one of the three ghosts at Sima Shi's bedside. (He is also, indirectly, why Xiahou Ba is on the other side of the western campaign in this same chapter.)