The Secret Agent 303 (1966) — Cast
Cast
| Walter Tso Tat-Wah | #303 |
| Teresa Ha Ping | Secret Serviceman |
| Yip Ha-Lei | Detective Fritz |
| Wong Ha-fei | |
| James Yi Lui | Newsreel Scientist |
| Gam Lui | |
| Heung Hoi | |
| Chow Luen | |
| Lam Yuk | |
| Go Chiu | |
| Tong Kai | |
| Fung Ging-Man | |
| Yung Yuk-Yi | Big Momma |
| Yeung Yip-Wang | Inspector Juve (as Edmond Bréon) |
| Chow Gat | |
| Ng Yan-Chi |
Crew
| Tong Kai | Martial Arts Choreographer |
| Leung Cho | Script Supervisor |
| Suen Kai-Shui | Production Director |
| Chui Wah-sang | Sound Recordist |
| Leung Chi-Hing | Art Direction |
| Cheng Yung | Cinematography |
| Yeung Heung | Producer |
| Ling Wan | Director |
| Lam Wah-Sam | Editor |
| Shek Chee Bun | Assistant Director |
| Kwan Sou | Hair Assistant |
| Ng Cho-Hung | Makeup Artist |
| Szeto On | Screenplay |
| Yuen Yiu-Fun | Producer |
| Fan Ka-Ken | Editor |