Se-hoon (played by Han Joon-woo) lives on the penthouse floor of the quarantined apartment complex. He s the guy who asked Sae-bom for an authentic special forces jacket. His character hasn t really been very important so far- although last episode he did make a special effort to vouch for Andrew (played by Lee Joo-seung) who had been confirmed as infected with madness rabies. This defies Se-hoon s status as the presumed wealthiest resident of the complex. It was mainly other owners calling for Andrew s expulsion, Happiness - Drama, Ahn Gil-ho, Han Hyo-joo, Han Joon-woo, Han Sang-woon, Jo Woo-jin, Kang Han-saem, Kang Ji-eun-I, Lee Joo-seung, Lee Joon-hyuk-I, Park Hee-von, Park Hyung-sik, Park Joo-hee