陈东 (played by Jordan Chan Siu-Chun) is a protagonist in Killer.
阿保 (played by Simon Lui Yu-Yeung) appears in Killer.
阿勇 (played by Ken Wong) appears in Killer.
Ivy (played by Yoyo Mung Ka-Wai) appears in Killer.
Mantis (played by Mark Cheng Ho-Nam) appears in Killer.
Pauline (played by Claire Yiu) appears in Killer.
公子 (played by Kenneth Tsang) appears in Killer.
蛇皮 (played by Lo Meng) appears in Killer.
