血字第一號
Blood No. 1 (1965)
Alias: The Ring of Spies
Country: Hong Kong
Language: Cantonese 
Genres: Martial Arts  War 
Release Date: 09/16/1965
 
Director
  Ng Wui
 
Producer
  Kwan Chi-Kin (1)
 
 
Cast
  Ng Kwun-Lai ... Agent No. 1/Cheung Lo-Sa
  Cheung Ying-Tsoi ... Fong To
  Lam Kau ... Lee Wai-Choi
  Kwan Hoi-San ... Kwan Kim-Fung
  Lee Hing-Yau ... Lili
  Lee Pang-Fei (1) ... Mai Chu-Sung
  Ng Tung ... Ma Pei-Ching
  Wong Hak (1) ... Chief
  Yue Ming ... 'Four-Eyes' Chow
  Hui Ying-Ying ... Step-mother
  Fung Ging-Man    
  Yung Yuk-Yi ... Cheung's aunt
  Lee Sau-Kei ... Cheung's uncle
  Ng Wui ... Fong's colleague
  Cheung Nga-Fu    
  Heung Hoi (1) ... Collaborator
  Ko Lo-Chuen    
  Chow Gat    
  Tong Kai ... Killer in train
  Chow Siu-Loi ... Thug with revolver
  Wong Mei (1) ... Fighter with MP
  Yeung Ban (1)    
  Wong Kung-Miu ... Card player
  Fung Ming    
  Cheung Chi-Suen ... Patriot
  Lam Wah (1) ... Mahjong player, dancing
  Cheung Chok-Chow ... Mahjong player
 
Production Company
  Kin Shing Film Co
 
Cinematographer
  Ngai Hoi-Fung
 
Production Manager
  Kwan Chi-Shing
  Kwan Chi-Kin (1)
 
Sound Recordist
  Chui Wah-Sang
 
Art Director
  Leung Chi-Hing
 
Script Supervisor
  Man Man (1)
 
Makeup
  Tse Tsak-Yuen
 
Hair Stylist
  Tsui Kam-Lun
 
Props
  Lam Wah-Sam
 
Filming Location
  Hong Kong