| Name | Character | Episodes |
|---|---|---|
| Ti Lung | 首席调查主任/张天任 | 5 |
| Eddie Cheung Siu-Fai | 高级调查主任/高展辉 | 5 |
| Joey Leung Wing-Chung | 高级调查主任/卢一俊 | 5 |
| Ruby Wong Cheuk-Ling | 调查主任/周中洁 | 5 |
| Name | Character | Episodes |
|---|---|---|
| Ti Lung | 首席调查主任/张天任 | 5 |
| Eddie Cheung Siu-Fai | 高级调查主任/高展辉 | 5 |
| Joey Leung Wing-Chung | 高级调查主任/卢一俊 | 5 |
| Ruby Wong Cheuk-Ling | 调查主任/周中洁 | 5 |