Full cast of Unknown
Chris Chiu
Wei Qian
12 episodes
Kurt Huang
Wei Zhi-yuan
12 episodes
Tammy Lin
'Xiao Bai' Wei Li-li
12 episodes
Kim Jae-hoon
'San Pang' Tan Yu
12 episodes
Danny Liang
Xiong Da-fang
12 episodes
Yankee Yang
Wang Jun-le
12 episodes
Kai Yi
Hu
12 episodes
Alisia Liang
Feng Ning
12 episodes
Linda Lin
Lin Dai-ling
12 episodes
Prince Chiu
Qiu Quan
12 episodes
Max Kuo
Teenage Wei Zhi-yuan
12 episodes
Ruan Bo-hao
Young Wei Zhi-yuan
12 episodes
Chou Chien-yu
H.O.T male colleague
6 episodes
Lin Yu
H.O.T male colleague
6 episodes