John Shum x 2 in Pedicab Driver?

[MrBooth]

The cast list for Pedicab Driver has John Shum Kin-Fun in a dual role as "Master 5" and "Master 5's father".

But from these captures, it doesn't appear to be the case:

Master 5, definitely John Shum

Master 5's Father... surely not John Shum?


Thoughts?

[Shiomi]

...
Master 5's Father... surely not John Shum?
...

I second that. Look at the earlaps alone.

[Magic Wong]

...
Master 5's Father... surely not John Shum?


...

He looks like Yue Tau-Wan