Zheng Jian: Interpol; Shen Min: Zheng Jian's assistant, female scout; Wang Zhen: Assistant of Zheng Jian; Lin Hai: forensic doctor; Wen Shu: Female reporter of "Qiujiang Daily"; Jin Yuying: cousin of Wen Shu; Le Jue: Zheng Jian's wife; Xia Tian: Deputy editor-in-chief of "Qiujiang Daily"; Zhang Hanqian: A well-known industrial and commercial tycoon in Qiujiang City, the original owner of Qiuxiang Villa, was persecuted to death during the Cultural Revolution; Xin Yueqiu: Mistress of Qiuxiang Villa, Zhang Hanqian's widow; Xin Hanlu: Adopted daughter of Xin Yueqiu;

Yihua: Xin Hanlu's boyfriend, who is in the flower business; Xin Gu: nephew of Xin Yueqiu (brother Xin Yueqiu's adopted son); Mo Cai: The resident on the second floor of Qiuxiang Villa, deputy director of the Publicity and Education Department of the Municipal Labor Bureau; Gu Ling: Mo Cai's wife, the personnel director of the Municipal Labor Reform Bureau; Mo Feifei: The daughter of Mo Cai and Gu Ling, a fashionable beauty with blond hair; Han Feitian: A resident of the two pavilions on the second floor of Qiuxiang Villa, a young artist in Qiujiang City Shan Xiali: Han Feitian's wife, primary school teacher;

Chen Molin: The front resident of the large living room on the ground floor of Qiuxiang Villa, a lonely and eccentric little old man, whose hobbies are growing flowers and playing chess, is said to have been Zhang Hanqian's housekeeper; Kangli: The resident in the back room of the big living room on the ground floor of Qiuxiang Villa is ignorant, and after serving his sentence, he does some business outside that no one can explain; Li Yangang: The young man nicknamed "Leopard" around Qiuxiang Villa has a history of robbery; Qi Ping: The female manager of Qiujiang Cafe Fu Lin: Qiping's subordinate;

Luo Jie: Qiping's subordinate.