Bumbling mainland crooks mess up a jewelry heist. Two cops serious Ken and jokey Sam investigate but mix up these amateurs with dangerous mainland robbers in the neighborhood.
| Actor | Role |
|---|---|
 Lau Ching-WanSam | Sam |
 Simon YamKen | Ken |
 Ruby Wong Cheuk-LingMacy | Macy |
 Benz Hui Siu-HungBen | Ben |
 Raymond Ho-Yin WongJimmy | Jimmy |
 Yoyo Mung Ka-WaiMandy | Mandy |
 Bak Ka-SinMandy's Co-worker | Mandy's Co-worker |
 Sato KeijiRobber | Robber |
 Joe Cheng ChoGangster | Gangster |
 Lam SuetRobber | Robber |
 Lester Chan Chit-ManGangster Leader | Gangster Leader |
 Paco Yick Tin-HungGangster | Gangster |
| RRicky LamNot listed | Not listed |
 Cheung Wing-CheungGangster | Gangster |
 Chiu Chi-ShingMandy's Co-worker | Mandy's Co-worker |
 Law Wing-CheongNot listed | Not listed |
 Lu Ching-TingNot listed | Not listed |
 Shin Kam-ChingOfficer Chan | Officer Chan |
| SSin Yan-KauDoctor Fung | Doctor Fung |
 Wong Chi-WingPoliceman | Policeman |
 Sam Kin-SangPoliceman | Policeman |
 Fei PakPoliceman | Policeman |
| CChow Au-MingGuard | Guard |
 Johnnie ToNot listed | Not listed |
 Yuen BunPoliceman | Policeman |