骆甲 / Luo Jia
骆甲 / Luo Jia enters the wiki through Hanji 153 part 2 as a former Qin cavalry specialist considered for command when 刘邦 begins building a cavalry force after the 彭城之战. The source pairs him with 李璧.
Luo Jia’s role is advisory and technical rather than sovereign command. Like Li Bi, he warns that former Qin identity may make Han troops reluctant to accept him as chief commander, and he supports appointing 灌婴 instead while serving as a deputy. The episode uses him to show that 汉军骑兵建设 depends on absorbing Qin military skill without making command legitimacy brittle.