Lee Tae-sung

as Cha Yoon-ho (51 episodes)

as Jang Min-ho (16 episodes)

as Joo Young Woo (16 episodes)

as Choi Joon-ki (60 episodes)

as Min Yong-joon (16 episodes)

as Seo Ji-Tae (52 episodes)

as Kim Gang-Jae (50 episodes)

as Park Hyun-Joon (50 episodes)

as Yong Tae-mu (20 episodes)

as Byun Dong-woo (57 episodes)

as Bong Joon-gu (16 episodes)

as Kwang-soo

as Jang Yoo Jin (1 episode)

as Bae Sang Shik (16 episodes)

as Kim Jung-joo (16 episodes)

as Lee Suk / Lee Soo

as Self (3 episodes)

as Self (4 episodes)