Francis ching golden triangle
Despite so, she is in love Laughing and sacrifices her life to save him. Janice Man as Carmen, the Executive Officer of the Security Bureau who is Laughing's contact person, while in actuality, she is a spy working for Fok Tin-yam.Due to the death of her boyfriend, she suffers from posttraumatic stress disorder and becomes Fok Tin-yam's patient. Kate Tsui as Paris Yiu (姚可可), a former barrister and girlfriend of Michael So.Kara Hui as Sa Po-yau (沙普邱), a drug dealer from the Golden Triangle who colludes with Fok Tin-yam.
Bosco Wong as Michael So (蘇星柏), nicknamed Crippled Co (跛Co), the main leader of Yee Fung Triad and Laughing's nemesis who was seemingly killed by Laughing during the events of Lives of Omission, while in reality, So was killed by Tai Chit, who was formulated by Fok Tin-yam to do so.Chapman To as Tai Chit ((大切)), prisoner 74635, a former station sergeant of the Narcotics Bureau who feigns mental disorder to cover his identity as one of Fok's followers.Francis Ng as Fok Tin-yam (霍天任), prisoner 77015, the main antagonist of the film, a university professor and criminal psychologist who is the mastermind who manipulated the corrupt cops, hoping to start a revolution.Michael Tse as Leung Siu-tong (梁笑棠), nicknamed Laughing Gor (Laughing哥), prisoner 76133, the main protagonist of the film, a former station sergeant (SGT66715) of the Criminal Intelligence Bureau (CIB) who was sent by Security Security Bureau Undersecretary Lai Cheuk-yin to go undercover in Stanley Prison to retrieve a list of corrupt cops.Suspecting that the incident involved a corrupt police force, the Deputy Secretary for Security Police assigned Laughing to investigate the case while posing as an inmate. It turned out that another person was responsible for Bosco Wong's character's death. Laughing's imprisonment was spurred by his role in an undercover assignment. At this time, a mysterious woman, who worked for high-level Security Police unit, visited Laughing in prison. Due to such abilities, the professor was able to silently control others. Furthermore, the professor was a criminal psychologist able to discern other people's inner secrets and dark side. Despite the professor's gentle and aloof exterior, he was a vicious, cold-blooded criminal. In prison, Laughing met Francis Ng (吳鎮宇), a university professor imprisoned for drug possession. Towards the end of TVB series, Lives of Omission, “Laughing Gor” Michael Tse was sentenced to life imprisonment after murdering Bosco Wong's (黃宗澤) character.