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劉青雲 as Inspector Chan Kwai Bun |
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安志傑 as Inspector Ho Ka-on |
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林家棟 as Ko Chi Wai |
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林熙蕾 as May Cheung |
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李焯寧 as Gigi |
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李國麟 as Wong Kwok Chu |
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張兆輝 as Violent Man - Ko's Inner Personality |
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林雪 as Fatso - Ko's Inner Personality |
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劉錦玲 as Calculating Woman - Ko's Inner Personality |
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Jeff Cheung Ka-Kit as Ko's Inner Personality |
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羅靖庭 as Ko's Inner Personality |
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趙志誠 as Ko's Inner Personality |
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洪偉良 as Ko's Inner Personality |
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陳慧珊 as May Cheung in Bun's Eyes |
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李日昇 as Weak Boy - Ho's Inner Personality |
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谷祖琳 as Schemy Woman - Ho's Inner Personality |
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高雄 as The Chief |
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Yuen Ling-To as Policeman |
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黃華和 as Restaurant Manager |
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甄懋強 as Chi-Wai's Boss |
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周淑慧 as 7-11 Worker |
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夏澤信 as Ko's Colleague |
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黎震龍 as Ko's Colleague |
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Singh Hartihan Bitto as Naresh Sharma |
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王肇強 as Policeman (uncredited) |
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雷小明 as Mahjong Parlour's Staff (uncredited) |
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張耀輝 as Mahjong Parlour Customer (uncredited) |
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鄭保瑞 as Inspector Ho Ka-on (voice) |
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郭少芸 as May Cheung (voice) |
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陳彼得 as Cameo (picture in police file) |
| Directing | 杜琪峰 | Director |
| Directing | 韋家輝 | Director |
| Production | 趙志誠 | Unit Manager |
| Art | 陳錦河 | Production Design |
| Sound | Martin Richard Chappell | Sound Designer |
| Production | 向華強 | Executive Producer |
| Production | 鞠觉亮 | Line Producer |
| Sound | Xavier Jamaux | Original Music Composer |
| Costume & Make-Up | 朱惠芳 | Makeup Artist |
| Editing | Tina Baz | Editor |
| Production | 杜琪峰 | Producer |
| Writing | 韋家輝 | Screenplay |
| Art | 陳錦河 | Art Direction |
| Costume & Make-Up | 張世傑 | Costume Design |
| Production | 韋家輝 | Producer |
| Writing | 歐健兒 | Screenplay |
| Camera | 鄭兆強 | Director of Photography |
| Costume & Make-Up | Mark Garbarino | Makeup Artist |
