Song Ji-ho

as Gi-won

as Jae-yeon

as Jae-chil

as Hong Dae-il

as Jeremy

as Im Geum

as Seo Jung-min

as Kim Gun Woo

as [Radio Show host]

as Shin Jong-Shik

as Choi Jung Hoon / "Alex" [Barro, Service Care Team]

as Nam Dong Goo

as Jin Soo

as Park Sun-chang

as Kang Jun Ho

as Won Ju Seok

as Go Myung Suk

as Min Kook

as [I Na's stalker]

as Chun Min Gyu

as Lee Woo Sung [Hae Sung's brother, firefighter]

as Nakamura

as Seo Yo Han

as Beom Suk

as Lee Dong Geun