Han Xi Long (Male Lead)
Jiang Ying Yue (Female Lead)/Viper (FL's underground fighting name)
Mingzhu Ming (Female Lead's best female friend)
Wang Fang - Nickname is Neo (Female Lead's best male friend)
Li Shufen (Male Lead's secretary)
Zhuang Wei (Male Lead's best friend/childhood friend)
Han Xi Tang (Male Lead's Father)
Huo Bao (one of Male Lead's enemies)
Su Moxi (currently referred to as Blonde female)
Zo (Underground Fighting Organizer)
Bo (Underground Fighting Organizer)
Hetong (Underground Fighting Contestant)
Qi Jinguang (Underground Fighting Contestant)
Yue Fei (Underground Fighting Contestant)
Li Feng (Underground Fighting Contestant)
Ze Mao (Underground Fighting Contestant)
Scorpion (Underground Fighting Contestant)
Sun Bin (Underground Fighting Contestant)
Wang Jinghua (Waitress)
M - ML's (Genius subordinate; real name undisclosed)