http://www.hkmdb.com/db/movies/view.mhtml?id=2551&complete_credits=1&display_set=eng

Co-director:
Chor Yuen 楚原

Producer:
Poon Bing Kuen 潘炳權

Cast:
Lee Pang-Fei 李鵬飛
Michael Lai Siu Tin 黎小田

Cinematographer:
Chan Kon 陳幹

Editor:
Gwok Keung 郭強

Composer:
Eddie H. Wang

Somebody added the cast suggestion here.

Now we have 3 problems.

1) Eddie H. Wang.

2) about the "co-director" topic, if you remember well on the "Goddess of Mercy" Affair, the symbols 聯合導演 (Chor Yuen is credited in this way in the Chinchanchung's HKFA book for that film) may mean "assistant director". Maybe it's better credit them as "executive director" ? For the moment, Chor and Dao will be "executives".

3) You suggest the "production managers" (製片) as producers, but they are not. In the entry of your film (2711), there is a producer (監製) and a production manager (製片). Maybe your translation is not correct. You have remembered me a sad episode with Mr. Chinchanchung...

Added the rest of them.

2) about the "co-director" topic, if you remember well on the "Goddess of Mercy" Affair, the symbols 聯合導演 (Chor Yuen is credited in this way in the Chinchanchung's HKFA book for that film) may mean "assistant director". Maybe it's better credit them as "executive director" ? For the moment, Chor and Dao will be "executives".

If it could be of any help... in the HK Filmography Vol. IV entry for the movie "Bloodshed in the Valley of Love" Chor Yuen is credited as co-director. In the HKMDB entry is credited as director with Chun Kim. The same thing occurs in the Whispering Palms entry. I don't know who's right...

For the "deputy director" question I'll try to post some screenshot from the Darling Girl vcd to see if the credit chinese characters could help you.

re: Murder on the Beach, has the been released on video? If so, I didn't notice it.

(fyi, I've been having a lot of major browser issues recently, so I haven't been able to be more active with the updates.)