Song Ji-ho

as Seo Yo Han

as Im Geum

as Park Sun-chang

as [I Na's stalker]

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

as Seo Jung-min

as Jae-yeon

as Jae-chil

as [Radio Show host]

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

as Kang Jun Ho

as Lee Dong Geun

as Hong Dae-il

as Nakamura

as Chun Min Gyu

as Jin Soo

as Won Ju Seok

as Go Myung Suk

as Shin Jong-Shik

as Kim Gun Woo

as Nam Dong Goo

as Gi-won

as Jeremy

as Min Kook

as Beom Suk