"Untraceable Evidence is a Police Procedural in Hong Kong, produced by TVB. The series had two seasons."
Flora Chan Wai-Shan
as 聂宝言 / Nip Bo Yin / "Pauline"
Bowie Lam
as 曾家原 / Tsang Ka Yuen
Lee San-San
as 蔡小棠 / Choi Siu Tong
Margaret Chung
as 聂津津 / Nip Jut Jut
Jerry Koo Ming-Wah
as 李志奇
Cheung Hak
as 陈大华
Deon Cheung Chung-Chi
as 陈小华
Simon Man Kit Lo
as 曾家乔
Rainbow Ching
as 宋桂枝（曾家乔母）
Chun Wong
as 曾耀球（曾家原父）
Maggie Chan Mei-Kei
as 聂宝意
Lau Kong
as 蔡国忠（蔡小棠父）
Joseph Lee Kwok-Lun
as 杜子俊
Alannah Ong
as 聂白绮绫
Cherie Chan Siu-Ha
as 袁天晴
Gabriel Harrison
as 袁天明（Antony）
Hawick Lau Hau-Wai
as 杨志伦
Ellesmere Choi
as 王英杰
于小华
as 聂宝言（国语配音）
张济平
as 曾家原（国语配音）
Jinsha Xing
as 蔡小棠（国语配音）
Ching Ip
as 曾家乔（国语配音）
Chan Chiu-Ming
as June
Sam Leung Kin-Ping
as 高Sir（法证科）
Chow Hoi-San
as Emily（法证科）
Russell Cheung
as 轩 / "Vincent"（法证科）
Sunny Tai Yiu-Ming
as Ken（法证科）
Lee Wong-Sang
as Robert（法证科）
Man Yeung Ching-Wah
as Peter（法证科）
He Qi-Min
as Linda（法证科）
Raymond Lee
as Tom（科技组）
Ip Chun-Sing
as Donald（科技组）
Suen Kwai-Hing
as 餐厅德叔
Wong Wai-Sing
Director
Poon Ka-Tak
Executive Producer
Edmond Leung Hon-Man
Songs
Wai-Nam Ku
Script Editor
