Nick Cheung Ka-Fai as Ching Fai

Eddie Peng Yu-Yan as Lin Si Qi

Mei Ting as Wang Ming Jun

Andy On as Li Zi Tian

Wang Baoqiang as Boss Chan

Jack Kao as Lin Yuan Xiang

Crystal Lee as Liang Pei Dan

Philip Keung as Yeung Hing Sun (TS)

Liu Geng-Hong as Rock Kong

Li Fei'er as Coco

Michelle Lo as Sandy Lo

Gary Chan Ga-Fai as Leung Cheung On (Dani's Father)

Stephen Au Kam-Tong as Master Kwan (Ching Fai's Master)

Awayne Liu as Young Ching Fai

Tony Ho as Brother Mo

Calvin Poon Yuen-Leung as Wai Keung

Ken Law Ho-Ming as Edwin Lo

Noel Leung as Psychiatrist

Phyllis Man Si-Man as Social Worker - Ms Tong

Mike John Power as MMA Contestant (1st game opponent)

Alberto as MMA Contestant (2nd game opponent)

Craig Miller as MMA Coach

Wong Chui-Yee as Madam Chan (Lo's Friend)

Angela Chan Yuk-Ying as Madam Cheung (Lo's Friend)

Tam Tin-Bo as Madam Li (Lo's Friend)

Mo Lai-Yee as Madam Pak (Lo's Friend)

Singh Hartihan Bitto as MMA Emcee