Yoo Ah-in
Han Se-joo / Seo Hwi-young

Lim Soo-jung
Jeon Seol / Ryu Soo-hyeon

Go Kyung-pyo
Yoo Ji-no / Shin Yool

Kwak Si-yang
Baek Tae-min / Heo Young-min

Jo Woo-jin
Gal Ji-seok

Oh Na-ra
Secretary Kang

Yang Jin-sung
Ma Bang-jin

Jeon Su-kyung
Wang Bang-wool

Kang Hong-suk
Won Dae-han

Ji Dae-han
Won Man-hae

Cheon Ho-jin
Baek Do-ha

Jo Kyung-sook
Hong So-hee

Seo Hye-jin
Ribera

Shim Min
Mi-young

Kim Seong-hoon
Lee Jeong-bong

Park Sun-im
Hanna Kim

Choi Seo-yeon
Seol's colleague

Cha Gun-woo
Yool's butler

Jeong Yeon-joo
Bang-jin's colleague

Kim Hyun-sook
Dr. Soo

Cha Soon-hyeong
Japanese police

Jo Yeong-hoon
Veterinary surgeon