Wai Ga-Hung (???) and Willie Wai Ga-Hung (???) are the same person.

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

merged

Wai Ga-Hung
???

Filmography (1995)
Actor
Ghost House - A True Story (1995) ... Bill


and

Willie Wai Ga-Hung
???
Aliases: Wai Ka-Hung, Wei Jia-Xiong

Filmography (1992-2010)

Actor
Something Incredible - Ghost Boxer (1992)
Love, Guns & Glass (1995) ... Charcoal
Thunderbolt (1995)
The Imp (1996)
Muto Bontie (1996)
Ghost Story 'Godmother of Mongkok' (1997) ... Yien
The Enemy (2001)
Scaremonger (2001)
If U Care ... (2002) ... Hung
Color of Pain (2002) ... B Chai
To Live and Die in Mongkok (2009) ... Porky
The Most Dangerous Man (2010)
Writer
Ghost Story 'Godmother of Mongkok' (1997)