《反贪风暴4》Cast

Louis Koo Tin-lok (古天樂; born 21 October 1970) is a Hong Kong actor and film producer. He began his professional career as an actor in local television series, winning TVB's Best Actor award in 1999 and 2001. Then he focused on film career. Now Koo is one of the stalwarts of the Hong Kong film industry. Koo has been the ambassador of Hong Kong International Film Festival from 2014 to 2017. Koo founded "One Cool Film Production Limited" in 2013. As of 2017, One Cool Film has produced 14 films.

Kevin Cheng Ka-wing (born 15 August 1969) is a Hong Kong American actor and singer who is currently under the management of the Hong Kong television network TVB. Cheng rose to fame in late 2004 after playing his first lead role in the TVB drama Hard Fate.

Raymond Lam (born 8 December 1979) is a Hong Kong actor and singer. He is best known for his roles in the television dramas A Step into the Past, Moonlight Resonance, Highs and Lows and Line Walker, as well as being the "King of Chok" for his role in The Mysteries of Love.

Gordon Lam Ka-tung (林家棟) is a Hong Kong actor, known for his supporting roles in films directed by Andrew Lau and Johnnie To.