In the Line of Duty 4
movie

Released July 21, 1989
Overview
Two detectives who are up to their necks in trouble and in each other's face, as they try to shut down a drug-trafficking scheme that could be connected with international ties to organized crime. But in the midst of their investigation, innocent immigrant dock worker Luk Wan-Ting gets caught up in the mix when he witnesses the murder of an intelligence operative and is framed for the crime.
Cast

Cynthia Khan
as
Insp Rachel Yeung Lai-Ching

Donnie Yen
as
Captain Donnie Yan

Michael Wong
as
Captain Michael Wong

Yuen Yat-Choh
as
Luk Wan-Ting

Lisa Chiao Chiao
as
Luk's Mother

Wai Gei-Shun
as
HK Police Officer

Yuen Shun-Yi
as
Drug Dealer

Michael Woods
as
Black Fighter on Rooftop / Motorbike

John Salvitti
as
Fighter in Alley
- no image
Stephan Berwick
as
Fighter on Motorbike
- no image
Fairlie Ruth Kordick
as
Blonde Fighter

Paul Wong Kwan
as
Killer at Hospital
Crew

Paul Wong Kwan
as
Martial Arts Choreographer
- no image
Anthony Wong Wing-Fai
as
Writer

Yuen Woo-Ping
as
Martial Arts Choreographer

Yuen Shun-Yi
as
Martial Arts Choreographer

Yuen Woo-Ping
as
Director

Cho Wing
as
Martial Arts Choreographer

Cheung Chi-Sing
as
Writer

Kim Yip Kwong-Kim
as
Writer

Stephen Shin Kei-Yin
as
Writer

Stephen Shin Kei-Yin
as
Producer

Dickson Poon Dik-Sang
as
Executive Producer
- no image
Richard Yuen
as
Original Music Composer