cast
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Simon Yam
John Paul
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Allen Ting Chi-Chun
Tung / Chin Kai Tung
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Gigi Lai Chi
Ho Siu Chi / Gi Ho
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Danny Lee Sau-Yin
Police officer / Lee Sir
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Simon Lui Yu-Yeung
Alien
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Bessie Chan Ming-Kwan
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Sung Boon-Chung
- Nelson Cheung Hok-Yun
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Alan Chui Chung-San
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Eddy Ko Hung
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Edith Au
- Foo-Keung Kong
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Rocky Lai Keung-Ken
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Ronny Ching Siu-Lung
- Wynn Lau Chun-Fai
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Che Jan-Bong
- Ng Wing-Sum Alien's Thug