Nam Myung-ryeol

as Professor Kim Jung-woo

as Professor Choi

as Dr. Chang

as Blue House Chief of Security

as Director of the National Security Office

as Divorce Court Judge

as Yun Du-su

as Na-ri's Father

as President

as Kwan-ho

as Director Choi

as CEO

as Yang Tae-yang

as Tailor

as Baek Nam-Gyu

as Son Pil-young

as Lee Myung-jae

as Hwang Ho-Sik

as Chairman Song Yeon-Mo

as Baduk master

as Hwang Ju-il

as Yoon Hak-Joo

as Jang In-ho

as Lee Saek