Although Johnnie To can see familiar faces such as Lin Xue, Ren Dahua and Shao Meiqi in the supporting cast, the protagonists are Richie Jen, Cheung Ka Fei and Kelly Chen who have never worked together before. The previous roles of the three leading actors tended to be stereotyped, giving people the impression that they were not deep enough and their acting skills were mediocre. Johnnie To used them, using a lot of long shots and large-scale movements, to discover the other side of these three actors.
There are two robbers played by mainland actors You Yong and Ding Haifeng, who are the most outstanding roles. Ding Haifeng has very few lines, but his cold body language and eyes are very convincing; You Yong's calmness on the surface leaves a deep impression on people. The scene where he and Richie Jen are co-hosting in the kitchen even brings the two thieves together. The personality is on full display.
