Cause We Are So Young

Gigi Lai Chi

as MiMi

Vincent Kok Tak-Chiu

as Chuen's Boss

Leo Ku

as Au Ga Chuen

Law Kar-Ying

as MiMi's Father

Bonnie Wong Man-Wai

as MiMi's Mother

Angela Tong Ying-Ying

as Cathleen

Lee Siu-Kay

as Annoyed Restaurant Diner

Kathy Chow Hoi-Mei

as Mrs Chan

Lee Lik-Chi

Andy Lau

as Man at Outdoor Cafe

Nicola Cheung Sun-Yuet

Tats Lau Yee-Tat

Joh Chung-Sing

Roderick Lam Chung-Kei

Cheng Man-Fai

Lee Kin-Yan

Mark Lui

Pauline Yeung Yung-Lin