as Ha Sun-woo
as Yang Jun-mo(5 eps)
as Hwang Jun-u(12 eps)
as Seon-wook(12 eps)
as Writer K
as Kwon-woo
as Woo Gwang-nam(16 eps)
as Kim Eui-sung
as Choi Eun-cheol(16 eps)
as Park Byeong Jae's acquaintance(1 ep)
as [Masked nurse](2 eps)
as Ik-joon's brother(1 ep)