Chen Tai
As a scion of two of Wei's most powerful families (the Chen and Xun families), Chen Tai grew up with the sons of other prominent political families such as the Sima family. He was a good friend of Sima Shi and Sima Zhao, who later became the regents and "de facto" rulers of Wei. After he reached adulthood, he was appointed as the Inspector of Bing Province in 244. There, he fought off raids from the Xianbei tribes and became known as a skilled military leader. At some point during all of this, some officials attempted to bribe him to buy slaves from the tribes, but Chen Tai refused and returned their money. When he was recalled back to the imperial capital Luoyang in 249, Sima Yi had just seized power in a coup against his co-regent, Cao Shuang. Chen Tai was one of several officials who sent letters to Cao Shuang, asking him to give up and surrender to Sima Yi. Cao Shuang did so and was executed along with most of his clan/inner circle later as part of Sima Yi's plan to gain complete control over the Wei government.