My Positive Grandpa

Ko I-chen

Grandpa

Li Yi-ru

Tsin-tsu

Tang Tsung-sheng

Yu-sheng

Bamboo Chen

Yu-hsien

Kung Ling-yuan

Yi-lun

Ko Cheng

Yi-chieh

Tsai Ming-shiou

Grandpa Oo-bīn

Annie Nguyen

Yu-hsien's ex-wife

Lin Ren-cong

Yi-lun's boyfriend

Huang Li-jen

Policeman

Chen Yung-hui

American uncle

Liao Bo-yan

Yi-chieh's colleague