The cast of Chill 2 lists the following six actors.

1, Aaron Kwok plays police chief Liu Jiehui. There are many plots against him. The position of the police chief was in jeopardy. His wife and children were kidnapped and his wife eventually died. In order to find out the boss behind the scenes, he persuaded Li Wenbin, a retired former deputy sheriff, to help him solve the case.

2. Li Wenbin, played by Tony Leung Ka Fai, is a former deputy director of the police force, who has retired and participated in the case investigation under the persuasion of Liu Jiehui. Later, he found that his father was closely related to the big boss behind the scenes, and he fought with them.

3. Liang, the former head of the public relations department of the Hong Kong Police Force, has been promoted to the position of Senior Assistant Commissioner of the Police Force and has once again become the right-hand man of the new Commissioner of Police. The responsibility has further changed from the spokesman of the police force to the core personnel of the chill operation.

4. Eddie Peng Yuyan Yu Yan plays Li Jiajun, the son of Li Wenbin, the planner of two thumb events.

5. Chow Yun Fat plays Oswald Kan, a senior lawyer and an independent member of Parliament. His appearance escalated the contradiction within the police force into the contradiction between law enforcement and law in Hong Kong.

6. Yang Shining plays He, a retired China police elite. There is an evil, cruel and unruly.