Seo-jin shows Ha-na that Robin is his other self and says they have a condition called DID.
Hyun Bin
Goo Seo-jin / Robin
Han Ji-min
Jang Ha-na
Sung Joon
Yoon Tae-joo
Lee Hye-ri
Min Woo-jeong
Lee Seung-joon
Gwon Young-chan
Han Sang-jin
Ryu Seung-yeon
Shin Eun-jung
Dr. Kang Hee-ae
Lee Duck-hwa
Chairman Goo Myeong-han
Kim Do-yeon
Han Joo-hee
Kwak Hee-Sung
Seong Seok-won
Lee Se-na
Choi Seo-hee
Kim Kyung-Jin
Director Kim
Lee Jun-hyeok
Detective Na Moo-jin
Lee Won-keun
Lee Eun-chang
Oh Na-ra
Cha Jin-joo
Maeng Sang-hun
CEO Min
Moon Young-dong
Park Hee-bong
Choi Soo-han
Robin (Young)
Heo Jung-eun
Jang Ha-na (Child)
Jung Ji-so
Jang Ha-na (Young)
Hwang Min-Ho
Ahn Seong-geun
Jin Hyun-kwang
Jeong Man-sik
Do Sang-woo
Yoo Tae-joon
Kim Ji-eun
Chairman Goo's secretary
