Han Sa-myeong

Seung Gyu • 2 episodes

[Internal affairs investigator] • 1 episodes

[Police officer] • 1 episodes

Taxi Driver

[Luna Bar manager] • 1 episodes

[Police officer] • 1 episodes

[Private investigator] • 2 episodes

Vice company commander • 2 episodes

Kim Sang-bong • 2 episodes

Choi Jin-pyo • 1 episodes

Prisoner 1708 • 1 episodes

[Motel Thug] • 1 episodes

Team A agent Cha • 12 episodes

Cheol Min [Gyu Tae's Manager] • 2 episodes

Manager Kim

Seong U Je • 1 episodes

[Junkyard guy] • 1 episodes

Juk Chang Fan • 1 episodes

Won-seok • 1 episodes

[Drunk coach] • 1 episodes

Woo-Sung • 16 episodes

Yeong Hun • 5 episodes

Yeong-ho

Park Jung-min

Kim Hae-beom • 1 episodes

[Doctor] • 1 episodes

"Donkeye_sang" • 2 episodes

[Police officer] • 3 episodes

[Motel Clerk] • 1 episodes

[Restaurant deliveryman] • 2 episodes

Choon-bae

[Trial prosecutor] • 1 episodes

Truck Driver that killed a father and a son • 1 episodes

Im Jun Hyeok [Judge Seo’s hired PI] • 2 episodes

Sang-won

Park In Kyu [SKY Castle security] • 20 episodes

Lee Jae-min • 16 episodes

Ye Dong Jun [Drug smuggler] • 3 episodes

Han Hee Chul [1988 - escaped prisoner & hostage-taker] • 1 episodes

Gangster

Man

College Student Demonstrator

Employee • 1 episodes

Min Ji-seok • 2 episodes

Parcel Service Driver

New Gym Teacher

Choi Ho • 16 episodes

Young-eun's Boyfriend

Park Se Hyung • 16 episodes

"Dyed hair"

Reporter Yoon • 16 episodes

Dong Ho • 16 episodes

Na Il Kyung

Kickback

Young Kang Do-hyeok

Kim Jung-shik

Soldier Kim

Young Woon

Director Young Man

Inmate

[Taekwondo club member] • 3 episodes

Arcade Man

Zenegger