Park Shin-hye

Character: Seo-yeon

Jun Jong-seo

Character: Young-sook

Kim Sung-ryung

Character: Eun-ae

Lee El

Character: Ja-ok

Park Ho-san

Character: Mr. Kim

Oh Jung-se

Character: Seong-ho

Lee Dong-hwi

Character: Baek Min-hyun

Um Chae-young

Character: Young Seo-yeon

Jo Kyung-sook

Character: Sun-hee

Kim Min-ha

Character: Young Sun-hee

Moon Chang-gil

Character: Junk Dealer

Ryu Kyung-soo

Character: Junior Police

Song Yo-sep

Character: Senior Police

Lee Zoo-young

Character: Woman Who Picked Up a Phone (voice)

Park Hyoung-soo

Character: Man Who Picked Up a Phone (voice)