as Kosair(1 ep)
as Yoon Chang-sik(5 eps)
as Captain Kang
as Cho Seong-woo
as Lee Suk-joon(16 eps)
as Lawyer(1 ep)
as Kato Ryuhei(12 eps)
as Chi-deok's Bodyguard
as Heo Gwan-young(16 eps)
as Jung Eui-gyun(16 eps)
as Choi Ji-hun(16 eps)
as Bae Tae-jin(8 eps)
as Nurse(1 ep)
as CEO Oh(8 eps)
as Angry Brother(1 ep)
as Self(2 eps)
as Ma Doo-gi(48 eps)
as Kang Doo-gi(1 ep)
as Self(2 eps)
as Detective Lee