Seo Ji-hoon

as Kim Seok-ju (12 episodes)

as Jang Jun Chul (2 episodes)

as Woo Jae Yoon [One Person Storage] (1 episode)

as Kim Hwan (12 episodes)

as Geum Tae-yeong (6 episodes)

as Yoon So Myeong (2 episodes)

as Lee Kang-min (16 episodes)

as Developer Cha [Blue Net Developer] (2 episodes)

as Seok Jae-beom (12 episodes)

as Lee Ha-min (16 episodes)

as Self (1 episode)

as Yoon Bin (1 episode)

as Park Do-Gyeom (32 episodes)

as Lee Jae-seon (24 episodes)

as [Girl on the plane's boyfriend] (1 episode)

as Lee Soo (16 episodes)

as Kim Geum (16 episodes)

as Ha Myung Woo [Young] (16 episodes)

as Young Kang Shin-Woo (10 episodes)

as Kim Young Hoon (1 episode)

as Min Shik [Ji Ho’s friend] (4 episodes)

as Joseon Draftee

as Yoon Kyung-woo (16 episodes)

as Go Shi Saeng (4 episodes)

as Yeon Woo (10 episodes)