Helios: Cast
Jacky Cheung Hok-Yau
Professor C.Y. Siu / Helios
Nick Cheung Ka-Fai
Lee Yan Ming, Eric
Shawn Yue Man-Lok
Fan Ka Ming
Chang Chen
Gam Dao Nin / Messenger of Helios
Wang Xueqi
Song An
Ji Jin-hee
Choi Min Ho
Choi Si-won
Park Woo Cheol
Janice Man
Zhang Yijun / Messenger of Helios
Yoon Jin-yi
Sin Mi Kyung
Joyce Feng
Yuan Xiaowen (Chief Secretary of Mr. Song)
Philippe Joly
Younger Mr. BIG's Thug
Kim Hye-yoon
Park Woo Cheol's Sister
Kim Hae-sook
Park Young Sook (Director of NIS)
Lee Tae-ran
Yoon Hee Seon (Choi Min Ho's Wife)
Philip Keung Ho-Man
Wong Kin Chung
Paul Fonoroff
Martin Koo
Josephine Koo Mei-Wah
Sophia
Ken Law Ho-Ming
Lee Yan Ming's Subordinate
Leung Ho-Kai
Lee Yan Ming's Subordinate
Tracy Chu
Lee Yan Ming's Subordinate
Benny Li Shun-Yan
Representative of Hong Kong Customs
Eric Chung
Representative of LCSD
Ben Yuen
Representative of Transport Department
Timothy Cheng Chi-Sing
Representative of Fire Services
Rachel Kan
Representative of Hospital Authority
Suk-Yee Chan
Director of Immigration
Icy Wong
Female Reporter
Ji Dae-han
Korean Ambassador
Park Jeong-hak
Marine Police of Korea
Eddie Ho Wai-Yip
Fan Ka Ming's Subordinate
Luk Man-Wai
Fan Ka Ming's Subordinate
Hedwig Tam
Fan Ka Ming's Subordinate
Mike Leeder
Younger MR. BIG / Older MR. BIG
Singh Hartihan Bitto
Younger Mr. BIG's Thug
Semiquaver Iafeta
Younger Mr. BIG's Thug
Zhang Chaoli
Xiao Li (Senior Secretary of Mr. Song)
Gilbert Bae
Manager of Raw Material Plant Factory
Frank K.H. Kim
Manager of Raw Material Plant Factory
Kim Yanghyeong
M.C. at Choi Min Ho's Son's Birthday Party
Ha Woojung
Choi Myeong Gun (Choi Min Ho's Son)
Park Jaeyoung
Choi Myeong Gun's Grandfather
Kim Hyunsook
Choi Myeong Gun's Grandmother
Noah Wong Man-Nok
Hacker
Duncan Cheung
Hacker Assistant
Vincent Chi Mo-Chun
Superintendent of Macau Police