Tiezhu (Li) is a private eye recruited by the police to investigate the criminal activities surrounding action icon Yuen Bao (Chan). A long-time fan of Bao’s, the asthma patient Tiezhu can hardly believe his luck when he saves his idol’s life during a set accident. But as the two become friends and Tiezhu is brought in to reshape the sci-fi action film that Bao is working on, Bao’s sneaky manager, Tai (Danny Chan Kwok-kwan), is determined to turn his action crew into drug traffickers.
| Actor | Role |
|---|---|
 Eason Chan Yik-ShunYuan Bao | Yuan Bao |
 Li RonghaoZhang Tiezhu | Zhang Tiezhu |
 Li YitongTong Tong | Tong Tong |
 Danny ChanTai Ge | Tai Ge |
 Benz Hui Siu-HungWang Qifa | Wang Qifa |
 Wilfred Lau Ho-LungNot listed | Not listed |
 Cui ZhijiaNot listed | Not listed |
 Tenky Tin Kai-ManNot listed | Not listed |
 Chris CollinsNot listed | Not listed |
 Edward Ma Chi-WaiCop | Cop |
 Lam Tze-ChungTemple Street stall owner | Temple Street stall owner |
 Vincent Kok Tak-ChiuPlainclothes CID | Plainclothes CID |
| RRaffi KamalianRichard Billingham | Richard Billingham |
 Andrew DaszNot listed | Not listed |
 Charlene Chang QianDoctor | Doctor |
 Albert LeungNot listed | Not listed |
| YYoyo AuTong Tong's Assistant | Tong Tong's Assistant |
| CCecilia Ng Sin-SiDancer | Dancer |