

By Dramabeans
Gi Tae-ung
An Ki-dong
Judge Ahn Seung-tae
Kang Joo-chul
Park Kwang-deok, husband of one of the victims of the B357 plane crash who owns a judo gym.
Min Jae-sik
Edward Park (Korean name: Park Ki-pyo)/
Hong Soon-jo
Yoon Han-ki/Agent Shadow
Jung Kook-pyo
Jessica Lee
Gong Hwa-sook
Kim Se-hun
Ui Jeong's father
Kye Sun-ja
Hong Seung-beom
Go Hae-ri
Mickey
Jerome, a former mercenary involved in the crash of the B357 plane, alongside Kim Woo-gi.
Oh Sang-mi, Kim Woo-gi's wife
Cha Dal-Geon
Choi Jeong-woon - Airplane captain
Kim Ho-sik (Embassy staff)
Kim Woo-gi, co-pilot of B357 plane who was bribed to crash the plane with Jerome.
Lily, an assassin hired by Jessica to kill Cha Dal-gun and Kim Woo-gi.
Kim Do-soo, a North Korean defector working under Min Jae-sik's orders and later works for Lily.
Cha Hoon, Cha Dal-gun's nephew (Ep. 1, 7, 9) and one of the victims of the B357 plane crash. Jung Hyun-joon as a young Cha Hoon (ep. 1-2)