Lives of Omission is a 2011 television crime drama serial set and filmed in Hong Kong. Produced by Television Broadcasts Limited (TVB), Chong Wai-kin serves as the drama's executive producer with Sharon Au and Choi Suk-yin as the executive writers. The drama centers around a squad of undercover officers from the Criminal Intelligence Bureau (CIB) of the Hong Kong Police Force, who are closely following the activities of Yee Fung (義豐), a large triad society. Criminal Intelligence Bureau Harry Kung Damian Lau portrays Harry Kung / Kung Kar-pui (鞏家培), the senior superintendent of CIB. Jodie Chau Fala Chen portrays Jodie Chau / Chau Mong-ching (周望晴), known as Madam Jo, the senior inspector of CIB's A team. She is Laughing Leung's supervisor, later his girlfriend and fiancée. She was shot in the leg in episode 30 by Michael So who pushed her off a ledge to her death. She and Laughing got together in the middle of the series in episode 15. Laughing Michael Tse portrays Leung Siu-tong (梁笑棠), better known as Laughing, the drama's main protagonist. Laughing is the station sergeant CIB's A team, the subgroup in charge of monitoring criminal information and handling informants. Laughing is also responsible for recruiting and training young police officers in undercover work. Lap Ching, Siu-Kit, and Bubble are his students. He was suspended from all police duties in episode 15 for trading ketamine with Michael So in order to save Siu-Kit, but was later reinstated as a UC supervised by Jodie Chau. He is Jodie Chau's subordinate, later her boyfriend and fiancé. Laughing is an extremely experienced undercover cop having spent most of his career working as an undercover in various triad societies. Prior to the events of Lives of Omission, Laughing spent two years in an illegal armed weaponry gang as a spy for the mainland Chinese police before returning to Hong Kong to work as a UC (undercover) instructor. In order to bust Yee Fung, one of Hong Kong's most powerful triad society, Laughing employs Michael as his informant. He is sentenced to life in prison for murder after he killed Michael to avenge Jodie's death. Dog Head Derek Kok portrays Sze To-Hoi (司徒凱), known as Dog Head (狗頭), the sergeant of CIB's A Team. He is addicted to gambling and is indebted to Yee Fung, so he is forced to help Mok Yat-lit deal with triad matters. He was dismissed