Lee Si-eon

Self • 2 episodes

Oh Seong-joon

Blind date • 1 episodes

Classmate

Kim Hun • 1 episodes

Self • 12 episodes

Kang Min • 16 episodes

Go Joong-do • 12 episodes

Self - Traveler • 25 episodes

Self • 1 episodes

Self • 1 episodes

Jang Seung-cheol • 16 episodes

Seong-min

Self • 2 episodes

Astronaut • 1 episodes

Park Dong-cheol • 16 episodes

Lee Hong-dae

Wal • 16 episodes

Jung-ho

Self • 2 episodes

Kang Nam-il • 18 episodes

Im Byung-Min • 26 episodes

Shin Ho-bang • 40 episodes

CEO Ji • 16 episodes

Bang Se-ho • 32 episodes

Yong-Pal • 16 episodes

Jo Yong-gi • 21 episodes

Park Soo-bong • 16 episodes

Doctor (voice)

Self • 1 episodes

Dr. Park Min-jae • 4 episodes

Oh Woo-sik / "Tinker Bell" • 16 episodes

Section Chief Ahn • 20 episodes

Section Chief Heo • 20 episodes

Tae-soo • 1 episodes

Self • 2 episodes

Ki-tae

Yoo Han Cheol • 20 episodes

Yoon Shin-Joong • 114 episodes

Self • 165 episodes

Bang Sung-jae • 1 episodes

Jong-soo

김경철

Bang Sung-jae • 16 episodes

Self • 3 episodes

Secretary Lee • 16 episodes

Kwang Hyun • 1 episodes

Heo Taek Woo • 16 episodes

Kim Joong-ho • 20 episodes