In '' Paradox '' ( 2017 ) , Koo play a cop who is determined to avenge his daughter and performed most of the film 's action sequences without the use of a stunt double . For his performance in the film , Koo won Asian Film Award for Best Actor at the 12th Asian Film Awards as well the Hong Kong Film Directors ' Guild Award for Best Actor at the 12th Hong Kong Film Directors ' Guild Award in March 2018 . Koo 's performance also won him the Best Actor award at the 37th Hong Kong Film Awards held on 15 April 2018
37th Hong Kong Film Awards
37th Hong Kong Film Awards
Louis Koo