Edward Chen
Chang Jia-han

Tseng Jing-Hua
Birdy Wang

Leon Dai
Adult Chang Jia-han

Wang Shih-Sian
Adult Birdy Wang

Fabio Grangeon
Father Oliver

Barry Qu
Horn

Stone Yang
Rocky

Lance Chiu
Phil

Mimi Shao
BanBan

Lin Hui-Min
Bullied Schoolboy

Lotus Wang
Jia-han's Mother

Cheng-Yang Wu
Jia-han's Brother

Lenny Li
Brother's Girlfriend

David Chiu
Chi Chia-wei

Chih-ju Lin
Old Lonely Man in Park

Soda Voyu
Dirty Head

Honduras
Instructor

Chen Yi-ruei
Angel

Lung Siu Wa
Birdy's Dad

Chin Tzu-yen
Choir Girl

Qu Youning
Chief Instructor

Ma Nien-Hsien
Adult Horn

Mountain Kao
Adult Phil

Waa Wei
Adult BanBan

Jean-François Blanchard
Alex