Kim Byeong-ok

as Hwang Hwa-san (12 episodes)

as Self (2 episodes)

as Mysterious taxi driver (12 episodes)

as President Jang

as Lee Go-an

as Boss Jang

as Yang Sun-dong (7 episodes)

as Tae-san

as 전경위

as Kang Dae-Wook (16 episodes)

as Congressman Jang Pil-joon

as Bang Dae-han (16 episodes)

as Dr. Jang

as Chief Do

as CEO Lee (16 episodes)

as Lee Byung-Hak (32 episodes)

as Choi Ki-Il (12 episodes)

as Yoon Jong-soo (16 episodes)

as Han So-Jang (24 episodes)

as Park Soon-Jae (32 episodes)

as Eomjachi (30 episodes)