Ah, my mistake then.
I guess he must be in the credits somewhere.
I'll have to check out NEVERENDING SUMMER. Despite my thoughts about MAD MAD II, I do enjoy watching Hong Kong films shot over here, though invariably they're shot in the early or late winter, which does no justice to the scenery around this place!
I just found an old VHS at my local library for a movie called LOVE ME LOVE MY DADDY (both on the package and onscreen). I suspect this MIGHT be LOVE MA AND DAD (1988) in the database, but I haven't watched it all the way through yet. Turns out it's shot mostly in Toronto, so there's plenty of recognizable landmarks, and it thankfully doesn't cast a lot of "colorful" locals.
From what I've seen so far, it's about divorcee Ti Lung's retired father coming to live with him in Toronto, only to discover that his old triad enemy is living next door with his divorcee daughter.
I'm not entirely convinced that this is LOVE MA AND DAD, since there are no "MA's" in the whole film. However, the director of that film is Stephen Shin, who HAS shot other films over here, so this could be the same film. which means it might need to be added to the DB, possibly as an alias or vice-versa. More later.