as Kang Jeong-ho

as Chun-soo

as Cho Kyung-yoon

as Tak Jun-ha

as Sung-chan

as Kim Cheol

as Robot Repairman Park Do-won

as Yang Choon-dong

as Paul Chong Hasang

as Joo Young-jak

as Lee Woo-gon

as Investigator

as Moggy

as Kim

as Tae-kyu

as Kim Hyo-chan

as Jung-ha's Younger Brother (cameo)

as Dong-joon

as Ahn Min-Chul

as Prince Yeonsan

as Director Han

as Kim Man-soo

as Ju-ho

as Kang Hyun-woo

as Park Jin-han

as Baek Kwang-hyun

as Kyu-chul

as Kim Sun-woo

as Ji-ho

as Min-ho

as Private Cho

as Do-jin

as Director Sohn