18 Secrets of Kung Fu (1980) - credits vs actors

[STSH]

https://hkmdb.com/db/movies/image_detai ... ay_set=eng

Top listed actor Wang Fu Kun - moved to #1
But second char is Fu not Suet. An alias ?
[Edit : moved to #2]

Can't match #5 or #6.

https://hkmdb.com/db/movies/image_detai ... ay_set=eng

Can't match #4 Lu Shum? (?)

Cast re-ordered, some gaps.

No apparent match for Li Hai-Hsing, the star !
Is one of the unknowns another alias ?

[STSH]

I've cropped the English actor credits, which show Li credited as star, in a separate pane (may have been missing from Chinese version).
Six others listed.

[Edit: Sun Ching Chie - ID'd and added]

[STSH]

https://hkmdb.com/db/movies/image_detail.mhtml?id=10655&image_id=411657&display_set=eng

Top listed actor Wang Fu Kun - moved to #1
But second char is Fu not Suet. An alias ?
[Edit : moved to #2]

Can't match #5 or #6.

Wang Fu/Suet Kun:

Pictured at right here, from Mystery of Chess Boxing
https://hkmdb.com/db/movies/image_detai ... ay_set=eng

Ditto from 18 Secrets
https://hkmdb.com/db/movies/image_detai ... ay_set=eng

The strokes of the 2nd char are evidently confusable with Suet/Xue,
but the anglicization Fu indicates it should be Fu.

The third char looks like two different versions of Kun.

I add middle Fu as alias.
Seeking the other (rare) Kun character to add as another alias.

#6 is probably 華祐x. Unlisted.