Nick Cheung Ka-Fai as Ching Fai

Eddie Peng Yu-Yan as Lin Si Qi

Mei Ting as Wang Ming Jun

Andy On Chi-Kit as Li Zi Tian

Wang Baoqiang as Boss Chan

Jack Kao as Lin Yuan Xiang

Crystal Lee as Liang Pei Dan

Philip Keung Ho-Man 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