Lee Hyun-kyun

as Control M

as Byung-ju

as Oh Seong-Hoon

as Lee Chong Seop

as Doctor

as Teacher

as Oh Yun-sang

as Prosecutor Kang

as Cho Sang-cheol

as Baek Young Cheol

as Dr. Han

as Kwon Hyeok-joo

as Cho Jun-mo

as Choi Sang Ho [Security personnel]

as Prosecutor Im

as Mr. Lee

as Jin Dae-soo

as Han Si-won

as Ha-Neul's high school teacher

as Shim Deok-Chul [Young]