Helios

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 Wing-San

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

Jerry 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 Foo-Wah

Representative of Transport Department

Timothy Cheng Chi-Sing

Representative of Fire Services

Rachel Kan

Representative of Hospital Authority

Chan Suk-Yee

Director of Immigration

Gill Mohindepaul Singh

Saad

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

Vincent Chi Mo-Chun

Superintendent of Macau Police

Duncan Cheung

Hacker Assistant