Sam Hui Pui-To (???) and Sam Hui (???) are the same person.

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

Merged.

???
Sam Hui Pui-To ?
Aliases: Hui Pui-Do

Filmography (2014-2015)
Actor (2 films)
As the Light Goes Out (2014) ... Pang Wai-Leung
Ten Years (2015) ... 1) Boss Bill


and

???
Sam Hui ?

Filmography (2016)
Actor (1 film)
Good Take, Too! (2016) ... 4)