Cast (50)

Yoo Ho-jeong

Na-mi

Shim Eun-kyung

Young Na-mi

Jin Hee-kyung

Choon-hwa

Kang So-ra

Young Choon-hwa

Koh Soo-hee

Jang-mi

Kim Min-young

Young Jang-mi

Hong Jin-hee

Jin-hee

Park Jin-joo

Young Jin-hee

Lee Yeon-kyung

Geum-ok

Nam Bo-ra

Young Geum-ok

Kim Sun-kyung

Bok-hee

Kim Bo-mi

Young Bok-hee

Min Hyo-rin

Young Su-ji

Kim Si-hoo

Young Joon-ho / Joon-ho's Son

Park Young-seo

Young Jong-ki

Chun Woo-hee

Sang-mi

Kim Hye-ok

Na-mi's Mother

Jeong Seok-yong

Jong-ki

Ha Seung-lee

Ye-bin

Kim Yeong-ok

Na-mi's Grandmother

Baek Jong-hak

Nami's Husband

Jung Won-joong

Na-mi's Father

Kim Won-hae

Teacher

Kim Sae-byuk

Class Monitor

Kang Rae-yeon

Jong-ki's Girlfriend

Kim Ye-won

Girls' Generation Leader

Ryu Hye-rin

Girls' Generation Member

Lee Kyung-young

Joon-ho

Hwang Choon-ha

Past Detective

Bae Soo-kyung

Gang High School Girl

Park Soon-cheon

Woman in Past Picture

So Hee-jung

Homeroom Teacher

Cha Tae-hyun

Insurance Company Main Model

Lee Jun-hyeok

President of Private Detective Office

Han Seung-hyeon

Jung-mi's Older Brother

Yang Hee-kyung

Jang-mi's Mother

Ju Jin-mo

Sung-chan

Park Hee-jeong

Young-jin

Go Joon

Private Detective

Kwon Eun-soo

School Broadcasting Club DJ

Choi Yi-sun

Joon-ho's Friend

Sung Ji-ru

Choon-hwa's Lawyer

Eom Hye-soo

Sang-mi's Group

Ahn Soo-ho

Judge

Yoon Jung

Su-ji

Jun Yoon-ji

Student Presenter at Festival

Choi Soo-im

Bully Female Student

Yang Joo-ho

Insurance Company Branch Manager

Lee Sang-ah

Woman in Past Picture

Lee Seung-heon

Joon-ho's Friend

Crew (34)

Hwang Jin-mo

Stunts

Hong Eue-su

Dolly Grip

Baek Sang-hoon

Visual Effects Supervisor

Park Jin-young

Digital Intermediate

Chae Kyung-hwa

Costume Design

Lee An-na

Producer

Kim Jang-mi

Assistant Director

Woo Geum-ho

Camera Car

Park Geun-soo

Set Decoration

Richard Sanderson

Songs

Jung Jin-wook

Production Sound Mixer

Ahn Byeong-ki

Producer

Yoon Hwang-jik

Special Effects Makeup Artist

Kim Jun-seok

Original Music Composer

Kim Byeong-gi

Special Effects Supervisor

Lee Sung-jae

Lighting Director

Ahn In-ki

Producer

Joon H. Choi

Associate Producer

Katharine Kim

Executive Producer

Kang Hyung-chul

Director

Kang Hyung-chul

Screenplay

Kim Hak-hyun

Set Decoration

Yu Sung-kwon

Line Producer

Nam Na-young

Editor

Lee Hyung-deok

Director of Photography

Lee Seung-yeop

Sound Mixer

Kim Mi-young

Editor

Lee Yo-han

Production Design

Choi Hye-lim

Makeup & Hair

Lee Byeong-heon

Adaptation

Yang Gil-yeong

Fight Choreographer

Kim Baek-cheol

Digital Intermediate

Jung Hoon

Key Grip

Park Geun-seok

Stunts