| The Hong Kong Airport Special Police Unit (ASU) is a special police force responsible for maintaining public and aviation security, counter-terrorism, key personnel protection, disaster support and many other areas. Encountering different situations on duty, they see the joys and sorrow of life that make them reflect on their own lives. With every step forward, they establish a sense of mission as the airport security police. |
| Name | Character | Episodes |
|---|---|---|
| Ho Kai-Nam | Koo Ka Wo/ "Koo Papa" [Police] | 25 |
| Rainbow Ching | Kui Wai Ping {Easy's mother] | 25 |
| Parkman Wong | 25 | |
| Yeung Yuk-mui | Chiu Nga Yin [Cesar's mother] | 25 |
| Lam King-Kong | Yim Lai Cheung | 25 |
| Tyson Chak | Hung Lau | 25 |
| Pat Poon | Cheung Wang Yu/ Ah Yu /"Harvey" [Hill's dad] | 25 |