William Duen Wai-lun, born 1958, was a one of the real life bodyguards of Jackie Chan along with Jackie Chan Stunt Team member Ken Lo, a role he performed from 1988 to 2003. He worked on many films with Jackie Chan and his stunt team and even did a few stunts himself. He was known more as a character actor than a stuntman, often playing police officials, including controversially in the movie High Risk (1995), which mocked Jackie Chan. In the movie Gorgeous (1999) he and fellow Jackie Chan bodyguard, Ken Lo, parody their real selves by playing bodyguards to the films antagonist L. W. Lo, played by Emil Chau.
The Sweet Smell of Death
(Poon's superior officer)
Iron Monkey
(Fat Rich Patient)
Police Story 3: Super Cop
(General's Bodyguard)
Sleepwalker
(Supt)
Hong Kong Bronx
Big Bullet
(Richard)
Dead or Alive: Final
(Gangster)
Rock N'Roll Cop
(Hung's superior)
Four Dragons
A Friend's Wife
Violent Cop
Ultimatum
No Problem
Mist in Judge
(Officer Wong)
Always on My Mind
How to Meet the Lucky Stars
The Group
(徐哥)
Prince Charming
(Mr. Fat)
The Third Full Moon
Magnificent Team
The Other Side of the Sea
The Troublesome Romance
Revenge of Scar Face
City Hunter
(Cruise Passenger)
The Tricky Master
(Fat Pig)
The Saint of Gamblers
(Kitoyomo)
Crime Story
(Superintendent Cheung)
Future Cops
(Toyota)
Sex Flower
(William Tuen)
We're No Bad Guys
(Officer Pei)
High Risk
(Commander)
Her Name Is Cat
(Fatty)
The Crucifixion
(Inspector Ko)
Killers from Beijing
(Pig Skin)
Red Zone
(Insp. Michael Li)
A Taste of Killing and Romance
(Feng's Victim in Restaurant)
The Wrath of Silence
(Fat detective)
S.D.U. - Mission in Mission
Driving Miss Wealthy
(G4 Applying for Bodyguard Job)
No Justice for All
Au Revoir, Mon Amour
Rush Hour 2
(Cab Driver)
Infernal Affairs II
(Sergeant Chan)
Gorgeous
(Lo's Bodyguard)
Police Story 4: First Strike
((uncredited))
The Legend of Drunken Master
(Erhu Player at Night Market (uncredited))
Around the World in 80 Days
(Tiger #5 - Lung)
Thunderbolt
(Koo)
吃雞戰場
Fight in Causeway Bay II
Interpol
(段祥仁)