Lee Joong-ok

as Lee Bong-seok

as Coach Park

as Kim Jae-hyun (14 episodes)

as Han Byung-soon

as Nam Gil (1 episode)

as Deok-sam (2 episodes)

as Kang Sang-mook (1 episode)

as Kang Sang-doo (12 episodes)

as Seo Sang-woo

as Kim Nam-gil (16 episodes)

as Tae-uk (1 episode)

as Joon-cheol

as Kwak Sung-bum (12 episodes)

as Dowoo

as Police Officer

as Seo's right hand man

as Korean Association leader (1 episode)

as Fencing club coach (2 episodes)

as Managing Director of Hotel Emros

as Sauna manager (1 episode)

as Cheon Ju-bong