Zin Tae-hyun

as Self - Mentor (2 episodes)

as Kim Nam-Joon (105 episodes)

as Do Gwang-Woo (50 episodes)

as Self - Guest (1 episode)

as Roman Lee (32 episodes)

as Lord Chang Won (1 episode)

as Kim Sang Soo (16 episodes)

as Jin Yong-Suk (129 episodes)

as Se-hyeon (1 episode)

as Park Doo-ho

as Gyo-ki (36 episodes)

as Min Soo (124 episodes)

as Nam Ju Seung (21 episodes)

as Kang Hyung-Woo (159 episodes)

as Ran's Ex-lover

as Bae Ji-Hoon (156 episodes)

as Police

as Shi-Hoo

as Yeon-seong

as Kang Se-ki