الفتى الذئب

Sung-hee Jo

Director

Song Joong-ki

Chul-Su (wolf-boy)

Park Bo-young

Younger Sun-yi

Park Bo-young

Eun-ju

Jang Young-Nam

Sun-yi's Mom

Yoo Yeon-Seok

Ji-tae

Hyang-gi Kim

Sun-ja

Seung-mok Yoo

Professor Kang Tae-shik

Seo Dong-soo

Army Colonel

Woo Jung

Mr. Jung

Ahn Do-Gyoo

Dong-suk

Lee Jun-hyuk

Policeman 1

Yeong-ran Lee

Older Sun-yi

Hae-eun Kim

Woman Renting Mr. Jung's Room

Minwoong Lee

Dr. Kang's Assistant

Bon-im Goo

Mrs. Jung

Jung-Hee Nam

Dong-suk's grandmother

Bi Shin

Dong-mi

Yeong-Seok Oh

Policeman 2

Do-Hyun Sung

Man in Black Suit 1

Sung-hee Jo

Writer