My Positive Grandpa

Ko I-chen

Grandpa

Yi-Ru Li

Tsin-tsu

Tang Tsung Sheng

Yu-sheng

Bamboo Chen

Yu-hsien

Kung Ling-Yuan

Yi-lun

Cheng Ko

Yi-chieh

Ming-shiou Tsai

Grandpa Oo-bīn

Annie Nguyen

Yu-hsien's ex-wife

Lin Ren-Cong

Yi-lun's boyfriend

Li-Jen Huang

Policeman

Chen Yung-Hui

American uncle

Liao Bo-yan

Yi-chieh's colleague