陳奕迅

Ray

林嘉欣

Nancy

謝安琪

Gigi

彭于晏

Sam

向佐

Paul

陈洁仪

Mrs. Lai

范曉萱

Kay

Eric Tsang

Mr. Lai

楊濤

Piano Student’s Father

Keith Chan Cheuk-Kei

Laundry Shop Customer

陳家樂

陳偉霆

袁綺雯

Mr Lai's mistress

郭玥彤

Couple in prologue

Luke Lu Chang

Couple in prologue

Leanne Ho Si-Yin

Lover in prologue

Kwok Tsui-yee

Pet shop salesgirl

Yue Suk-Fan

Old lady sitting on sidewalk

Keith Chan Cheuk-Kei

Laundry shop customer

Norman Li Lok-man

Young Paul's friend on rooftop