All Cast
Bae Doona
Ok Taek-seon
Kim Yun-seok
Lee Gyun
Chang Ki-ha
Kim Yeon-woo
Son Suk-ku
Nam Su-pil
Moon Sung-keun
Professor Seong
Kim Hie-won
Director of Research Institute
Oh Hyun-kyung
Young-hee
Min Jin-woong
Jeong-hun
Yeom Hye-ran
Ms. Yeom
Yoo Soon-woong
Na Jeong-bae
Lee Kyung-jin
Taek-seon's Mother
Choi Hyung-in
Gyun's Mother
Kim Ye-won
Ji-seon
Park Hee-von
Yi-ju
Kwak Min-ho
Manager Kim
Hong Seok-bin
Doctor 1
Kim Kyeong-il
Doctor 2
Cha Si-won
Cop 1
Car, the garden
Cop 2