Biography
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.

Acting
Shantou, Guangdong, China
Born
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.

A Gilded Game· 2025
Mike

Crisis Negotiators· 2024
Lam Ka Cheung

Chasing the Dragon· 2023
Fat Bob

I Did It My Way· 2023
Uncle Cat

Triad 2· 2023
Mr. Wong

The Big Rescue· 2018
肥猫

Don't Jump Money Left· 2012

Sleepwalker· 2011
Eric's brother

Ip Man 2· 2010
Fatso

Run Papa Run· 2008
Uncle Lone - Elder #2

Flash Point· 2007
Wong

TAXI 810 III· 1999
何順

Casino· 1998
Inspector To

TAXI 810 II· 1996
何順

The Log· 1996
Officer Gump

Ancient Chinese Whorehouse· 1994
Kong

Beginner's Luck· 1994
Chow Sing Chi

Mermaid Got Married· 1994
Principal

Once Upon a Time in China V· 1994
Porky Wing

TAXI 810· 1994
何順

The Bodyguard from Beijing· 1994
Charlie Leung

The Gods Must Be Funny in China· 1994
Fatty

The Most Wanted· 1994
Supt Cheng Ming Fen

Wonder Seven· 1994
Nanny

A Roof with a View· 1993
Fat Ho

Crime Story· 1993
Detective Hung Ting-Bong

Lord Of East China Sea· 1993
Huang Quanrong

Lord Of East China Sea II· 1993
Huang Quanrong

Run and Kill· 1993
Cheung

Dr. Lamb· 1992
Fat Bing

Fun and Fury· 1992
Ma

Lethal Contact· 1992
Penguin

Lucky Encounter· 1992
Fatty

Powerful Four· 1992
Ho Sum

Legend of the Brothers· 1991
Hoi

Once Upon a Time in China· 1991
Porky Wing

Sergeant Talkie· 1991
Ken

Sex and Zen· 1991
Tin Chan

To Be Number One· 1991
Fat Kwan

Mr. Smart· 1989
Smart

Return of the Lucky Stars· 1989
Sgt Cheng

Sentenced to Hang· 1989
Ma Yee-Charn

Carry On Hotel· 1988
Mr. Lau

Diary of a Big Man· 1988
Inspector Cheng

The Beloved Son of God· 1988
Fat Cat

Walk on Fire· 1988
Tang

Easy Money· 1987
Inspector Ken

The Good, The Bad & The Beauty· 1987
Fatty