Kent Cheng Jak-Si
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Kent Cheng Jak-Si (Chinese: 鄭則士, born 22 May 1951) is a Hong Kong film and television actor. He is a two time recipient of the best actor award at the Hong Kong Film Awards.
Known for
Credits
Crime Story (1993)
as Detective Hung Ting-Bong
Once Upon a Time in China (1991)
as Porky Wing
The Prosecutor (2024)
as Bao Ding
Ip Man 3 (2015)
as Detective Po
Flash Point (2007)
as Wong
Chasing the Dragon (2017)
as Piggy
Cold War 1994 (2026)
as F.L. Kwok
The Bodyguard from Beijing (1994)
as Charlie Leung
I Did It My Way (2023)
as Uncle Cat
Once Upon a Time in China V (1994)
as Porky Wing
Ip Man 4: The Finale (2019)
as Bob
The White Storm 2: Drug Lords (2019)
as Yu Nam
Dr. Lamb (1992)
as Fat Bing
The Gods Must Be Funny in China (1994)
as Fatty
Cesium Fallout (2024)
as Secretary for Security
The Dragon Family (1988)
as Uncle Po
A Gilded Game (2025)
as Mike
To Be Number One (1991)
as Fat Kwan
Why Me? (1985)
as Fat Cat
Give Me Back (1983)
as Q
Wonder Seven (1994)
as Nanny
Lucky Stars Go Places (1986)
as Fat Cat
Legend of the Brothers (1991)
as Hoi
The Imp (1981)
as Fatty
Once Upon a Time in Hong Kong (2021)
as Pudgy
Funny Boys (1982)
as Zhang Bao
Sex and Zen (1991)
as Tin Chan
The Kung Fu Scholar (1994)
as Fat Cat
The Prince of Temple Street (1992)
as Cheng [cameo]
Those Were the Days... (1995)
as Wah's Father
Heroes Two (1974)
as Manchu Thug (uncredited)
Hero of Hong Kong 1949 (1994)
as Master Fok
The Spooky Family (1990)
Actor
The Accident (1983)
as Fatty Cheng
Lord Of East China Sea (1993)
as Huang Quanrong
Mermaid Got Married (1994)
as Principal
Heaven Can't Wait (1995)
as Tsui Dai Bo
Vampire Buster (1989)
as Cheung Sap Yat
Vampire's Breakfast (1987)
as Liao Chi-Piao / Fat Piao
The Beasts (1980)
as Moe
The Trail (1983)
as Captain
Ghost Legend (1990)
as Chu Yi
Run and Kill (1993)
as Cheung
A Hearty Response (1986)
as Policeman outside bank
Ancient Chinese Whorehouse (1994)
as Kong
Man of the Times (1993)
as Detective Lau Fook
Cop Busters (1985)
Actor
Casino (1998)
as Inspector To
All U Need Is Love (2021)
as Wong Tai Ho's father
The Emperor and His Brother (1981)
as No. 8, Yang Seng Hip
Crisis Negotiators (2024)
as Lam Ka Cheung
Modern Detective (1985)
as Cheng
Heartbeat 100 (1987)
as Sergeant Chu
Chasing the Dragon (2023)
as Fat Bob
The Good, The Bad & The Beauty (1987)
as Fatty
Read Lips (1980)
as Inspector
The Stunt Woman (1996)
as Blackjack
The Fortune Code (1990)
as Chocolate
Little Cop (1989)
as Yi's Butler
Guilt by Design (2019)
as Liang Sir
Sentenced to Hang (1989)
as Ma Yee-Charn
Murderer Pursues (1981)
as Uncle Su
Men from the Monastery (1974)
as Extra (uncredited)
The Man from Vietnam (1982)
Actor
The Most Wanted (1994)
as Supt Cheng Ming Fen
The Beloved Son of God (1988)
as Fat Cat
Spiritual Trinity (1991)
as Tien Kuei
Walk on Fire (1988)
as Tang
Carry On Hotel (1988)
as Mr. Lau
TAXI 810 II (1996)
as 何順
Lucky Encounter (1992)
as Fatty
The Big Rescue (2018)
as 肥猫
Lord Of East China Sea II (1993)
as Huang Quanrong
The Saviour (1980)
as Nineteen
The Dragon, The Odds (1979)
Actor
The Comedy (1984)
as Fatso
Easy Money (1987)
as Inspector Ken
Return of the Cuckoo (2015)
as Chan Man San
Every Man for Himself (1980)
Actor
Diary of a Big Man (1988)
as Inspector Cheng
He Lives by Night (1982)
as Dragon
Mr. Smart (1989)
as Smart
You're My Destiny (1987)
as Policeman
Wong Fei Hung Series : The Headless General (1996)
as Butcher Wing
Run, Don't Walk (1989)
as Sgt Leung
The Flying Mr. B (1985)
as Zhu Yugan
Hong Kong Graffiti (1995)
as Mr Seven
The Leakers (2018)
as Teo Jit Sin
Return of the Lucky Stars (1989)
as Sgt Cheng
The Club (1981)
as Kun
The Trier of Fact (—)
Actor
Extras for Chasing The Dragon (2025)
Actor
The Log (1996)
as Officer Gump
Deep Bay Of Bangal (—)
Actor
Chasing the Dragon (2020)
Actor
A Roof with a View (1993)
as Fat Ho
Bloody Brothers (1994)
as Yao Tai Chuan
The Informer (1980)
as Detective Chang Bann
Let's Go Slam Dunk (1994)
as Tin Yuen
What a Wonderful World (1996)
as Doctor
Sleepwalker (2011)
as Eric's brother
Mobfix Patrol (1981)
as Fatso
Soul Ash (1981)
Actor
兩個半爸爸 (—)
Actor
TAXI 810 III (1999)
as 何順
United We Stand (1986)
as Canteen boss
Fun and Fury (1992)
as Ma
Vendetta (1993)
as Ming
The Sweet and Sour Cops Part II (1982)
Actor
Mr. Sunshine (1989)
as Mai-Bao
Happy Go Lucky (2003)
as Fat Cat
Ip Man 2 (2010)
as Fatso
Struggle for Leader (1983)
Actor
Run Papa Run (2008)
as Uncle Lone - Elder #2
Wong Fei Hung Series : The Eight Assassins (1995)
as Porky Wing
The Sensational Pair (1983)
as Ko Kwai
The Turning Point (1983)
Actor
Mission to Kill (1983)
Actor
The Twilight of the Forbidden City (1992)
as General Cheung
玩命试爱 (2017)
Actor
Oh, My Cops! (1983)
as Sgt Porky
Triad 2 (2023)
as Mr. Wong
A Bride's Nightmare (1981)
Actor
Lifeline Express (1984)
as Fatso Ng
TAXI 810 (1994)
as 何順
Don't Jump Money Left (2012)
Actor
Beloved Daddy (1984)
Actor
Torrid Wave (1982)
Actor
Powerful Four (1992)
as Ho Sum
S.D.U. - Mission in Mission (1994)
as Officer Chin
Who Is Undercover (2014)
as Yu Dachuan
Daughter & Father (1981)
as Detective Cheng
Family Day (1990)
as Fatty Chow Fok Si
Beginner's Luck (1994)
as Chow Sing Chi
The Money Trip (1979)
Actor
The Daring Age (1981)
as Male parent
The Perfect Match (1982)
as Captain Hsu Tang Tao
Disco Bumpkins (1980)
as Director
Wrong Wedding Trail (1984)
as Shing Tai Shi
Good-for-Nothing Heros (2012)
Actor
Out of Control (2008)
as Zhang Heng
Lethal Contact (1992)
as Penguin
Wong Fei Hung Series : The Suspicious Temple (1996)
as Porky Wing
Kidnap of Wong Chak Fai (1993)
as Officier Chung Wai Ching
Sergeant Talkie (1991)
as Ken
Bomb Lover (1995)
as Inspector Seito
The End of the Stumer (2003)
as Captain Wong Nam
The Sweet and Sour Cops (1981)
Actor
Our Darling Coach (1980)
Actor
The Best Hustler Wins (1979)
as Magistrate
My Heart Will Go On (2001)
as Li Tee
生死依托 (2012)
Actor
The Utmost Greatness (1979)
Actor
Wong Fei Hung Series : The Ideal Century (1996)
Actor
The Daring Kung Fu Refugee (1984)
Actor
Dumbly Agent (2002)
as Uncle Ying
A Grand Statement (1981)
as Policeman
Body Puzzle (2001)
as Chiu Chi Shing
Mad Stylist (1997)
Actor