Full cast of The On1y One

Liu Dongqin

Sheng Wang

12 episodes

Benjamin Tsang

Jiang Tian

12 episodes

Samuel Ku

Zhao Xi

12 episodes

Kenny Yen

Lin Bei-ting

12 episodes

Lu Tingyu

Yang Jing 'Jenny'

12 episodes

Duan Chun-hao

Sheng Ming-yang

12 episodes

Jennifer Hong

Jiang Ou

12 episodes

Yu An-shun

Old Man Ding

12 episodes

Chen Wei-min

Mr. Zhao

12 episodes

Andy Chen

Gao Tianyang

9 episodes

Mimi Shao

Li Yu

8 episodes

Chen-Ting Tsai

Song Sirui

8 episodes

Jed Chung

Xu Tianshu

8 episodes

Tim Cheng

Qi Jiahao

8 episodes

Yao Ai-ning

Li Jia

8 episodes

Yan-Ze Lu

He Jin

6 episodes

Sean Lin

Director Xu

5 episodes

JN Yu

Pang Xie

4 episodes

Ho Yu-tien

Jin Shengdong

3 episodes

Liu Dai-ying

Gu Yue

2 episodes

Yang Tao

Young Sheng Wang

2 episodes

Apple Chen

Zhao Cai

2 episodes

Wu Jen-ya

Uncle Mute

2 episodes

Liu Kuang-Hui

PE teacher

2 episodes

Kuo Hsiu-feng

Aunt Sun

2 episodes

Chen Ching

School Doctor

2 episodes

Huang Song-yu

Ding Xiu

2 episodes

An Chun-peng

Zhai Tao

2 episodes

Chris Lee

Ji Huanyu

2 episodes

Stan Huang

Shi Yu

2 episodes

Yeh Ching-han

Exam Invigilator

1 episode

Chen Jiun-yan

Mr. Wang

1 episode