Deng Yukai as Shu-Wei Lin

Kent Tsai Fan-Hsi as Ren-Hao Duan (Boss)

James Lai Jun-Cheng as Guo-Feng Liao

Tao Bo-Meng as Wei-Zhu Yeh

Eugenie Liu as Adult Monster

Lin Pei-Hsin as Child Monster

Carolyn Chen as Ms. Li

Hsu Chen-Te as Math Teacher

Bonnie Liang as Boss's Girlfriend

Yuri Kao as Girl Outside Classroom

Chien Te-Men as Rong-Feng Li

Akio Chen as Vagrant

Bruce He as Boy by vending machine

Kai Ko as Student on bus

Vivian Sung as Student on bus

Phil Hou as Student on bus

Emerson Tsai as Student on bus

Lueh-Geng Huang as Grocery store son

Wu Mei-He as Grocery store grandma

Xiao Zhong-Wen as Vagrant

Dong-Lin Shi as Vagrant

Jin Jin-Zhou as Vagrant

Yang Qing-Xing as Elder

Sun Bing-Sen as Elder

Fang Dong as Elder

Meng Shi-Jing as Elder

Hong De-Ming as Elder

Peng Yi as Elder

Wu Bi-Lian as Elder

Hong Qi-Bing as Elder playing chess

Lin Dao-Yu as Druggie

Yang Xiu-Hui as Sexy lady

Chang-Shih Hung as Shu-Wei's dad

Hui-Chih Yeh as Shu-Wei's mom

Wang Shu-Hua as Angry elder woman

Su De-Yan as Boy thief

Zhu Shen-Long as Instructor

Ke Jie-Wen as Cursing parent

Gao Wei-Lun as School bus driver

Justin Jen as Cram School Teacher

Clover Kao as Survivor student

Wu Min-Ni as Survivor student

Tiffany Chou as FKU TV Anchorwoman (voice) (uncredited)