最强囍事

古天樂

Master Sammy

曾華倩

Helen

賈曉晨

Kiki

闫妮

Dream Chim

Ah Duo

Dream's buddy

黃百鳴

Chan Kei-hap

Xie Nan

Susan, Chan's personal assistant

Cheng Qian

Director Zhang

Donnie Yen

Cheng Yu-keung / Arnold Cheng

陳潔玲

劉嘉玲

Tai Mung-ni / Mona

張柏芝

Claire

AngelaBaby

Better

鄭中基

Snack delivery boy

Elva Ni Chen-Xi

Posh lady

Maggie Li

Creamy

林司敏

Social

薛家燕

Arnold's Mother

鮑起靜

Birthday Girl's Granny

李香琴

Arnold's Grandmother

譚凱琪

Female Staff

羅泳嫻

Female Staff

Josephine Chi Yan Chai

Female Staff

何菁瑋

Female Staff

Singh Hartihan Bitto

Curry

陳果

Book Store Manager

陳曼娜

Arnold's Aunt

Apple Chow Suk-Wai

Obnoxious Cosmetics Shopper

Ha Chun-Chau

Marriage Solemniser

Alvina Kong Yan-Yin

Arnold's 2nd Sister

谷祖琳

Xiao Tian Gu Delivery Girl

盧覓雪

Tai Tai

麥玲玲

Tai Tai

譚天寶

Cosmetic Counter Patron

鄧麗欣

Arnold's Niece

杜汶澤

Smoothie

曾建怡

OL

So-Fun Wong

Obnoxious Cosmetics Shopper

Lynn Hung

Victoria Lee

楊詩敏

Blind Fast food Shop Cashier

葉偉信

Wedding Minister

鄭可琳

Cardboard-Collecting Girl

Irene Wong