Kwok Yuk-Keung (???) and Kwok Yuk-Keung (2) (???) are the same person.

If nobody stops me in 10 days I will merge them.

Merged:

???
Kwok Yuk-Keung

Filmography (2003-2011)

Actor (10 films)
Infernal Affairs II (2003) ... SP
Breaking News (2004) ... Cop
Dating a Vampire (2006) ... Policeman
Wo Hu (2006) ... Policeman
Legendary Assassin (2008) ... Policeman
Tactical Unit - Human Nature (2008) ... Crime Unit officer
Womb Ghosts (2010) ... Policeman
City Under Siege (2010) ... policeman
Triple Tap (2010) ... Police Emergency Despatch Operator
Let's Go! (2011) ... Subordinate D of But Ching Mo


and

???
Kwok Yuk-Keung (2)
Aliases: Kwok Yuk-Kueng

Actor (2 films)
Love Battlefield (2004)
Love Undercover 3 (2006) ... Madam Lui assistant # 2