ZhangZijian plays Liu Tiezhu, the company commander of Hong Jiu in the 37th Division of the Second Field Army 1 10 Regiment. He is a war hero, with a hot temper, outstanding military exploits and fierce fighting. Although his leg was injured, he voluntarily gave up his dream military parade for the honor of the whole division. But he risked amputation, preferring conservative treatment rather than leaving Jiulian.

Xue Shan plays Li Shuiqing, commander of the 20th Infantry Division 199 of the North China Military Region. When the officers and men of the 9th Company withdrew from the battlefield, he announced that the 9th Company had merged into the199th Division and participated in the New China founding ceremony as a representative of the whole army's infantry.

Qiu Yunhe plays Wu Jingui, platoon leader of the 37th Division of the Second Field Army 1 10 Regiment. He is particularly brave on the battlefield and never fears death. Usually a little clever, the company commander especially likes him. However, because he is a gossip, he is always asking about gossip and is often reprimanded by the company commander.

Wang Haiping plays Zhao Yong, head of the 37th Division of the Second Field Army 1 10 Regiment. After receiving orders from his superiors, he led the officers and men of the Ninth Company to perform new secret tasks. Although they couldn't figure it out, the soldiers took obeying orders as their first duty, and they set foot on the train going north.

Liu Yajin plays the company commander of the eighth company and the company commander of the eighth company of the 37th Division of the Second Field Army 1 10 Regiment. Hong Jiu Company suddenly received an order from the regimental headquarters to retreat, and led the officers and men of the Eighth Company to besiege the sniper positions, which was unfortunately sacrificed.

Played the role of 199 Senior Military Staff of the Division Command, and trained the officers and men of the Ninth Company to participate in the military parade according to the orders of their superiors. However, he was not qualified to participate in the competition, and he could only watch the officers and men of Jiu Lian go to Tiananmen Square for inspection.

Kong, played by Lei Chi, is a soldier of the 37th Division of the Second Field Army 1 10 Regiment. He always cries when he hasn't been to war. He fell to the ground with heatstroke on the training ground, stood up and insisted, only to be sacrificed to save the child the day before the military parade.