Yoo Ah-in character Oh Joon-woo
Park Shin-hye character Kim Yoo-bin
Lee Hyun-wook character Sang-chul
Jeon Bae-soo character Mask man
Oh Hye-won character Police
Jeon Woon-jong character Firefighter
So Hee-jung character Joon-woo's mother
Kim Hak-sun character Joon-woo's father
Joo Bo-bi character Joon-woo's sister
Lee Chae-kyung character Mask man's wife
