Chai Yuen (??) and Kei Yun (??) are the same person.

The guy is from Taiwan, so suggest to change his English name to a proper transliteration.
In pinyin it should be Qi Yuan. Or use one of the transliterations that are used in Taiwan.

Please merge

If nobody stops me in 15 days I will merge them

Merged

??
Chai Yuen ?
Aliases: Chi Yuan


Filmography (1995-2004)

Actor (4 films)
Erotic Story (1995)
Empress Wu (1999) ... Taoist Priest
Lie Huo Nv Jing Hua (2001) ... [Uncredited]
Jail Legend of the Female Prisoner (2004)

and

??
Kei Yun ?

Filmography (1993)

Actor (1 film)
Fatal Love (1993)