Zhang Liao
When Zhang Liao returned to Luoyang, the warlord Dong Zhuo had seized control of Luoyang in the aftermath of He Jin's assassination, and replaced He Jin as the "de facto" head of the Han central government. Zhang Liao and his 1,000 troops then joined Dong Zhuo's army. In 192, after Lü Bu betrayed and killed Dong Zhuo, Zhang Liao served as one of his deputies and became a Cavalry Commandant (騎都尉).