Kim Joong-ki

Section Chief Cha

Jung Woo-sung

Choi Chul-soo

Son Ye-jin

Kim Su-jin

Baek Jong-hak

Seo Yeong-min

Lee Sun-jin

Jung An-na

David Lee McInnis

Model

Shin Cheol-jin

Manager Park

Hyun Young

Yu-na

Oh Gwang-rok

Homeless

Kim Bu-seon

Madame Oh

Park Sang-gyu

Mr. Kim

Kim Hee-Ryeong

mother (uncredited)

Seon Ji-hyun

Jeong-eun

Park Mi-sook

Ji-hyun

Jin Yong-uk

construction worker (uncredited)

Seo Jin-won

construction worker (uncredited)

Shin Hyun-tak

construction worker (uncredited)

Kwon Byung-gil

Ph.D. Lee (uncredited)

Jung Min-sung

passerby (uncredited)

Choi Gyo-sik

public officer (uncredited)

Park Yoon-hee

restaurant manager (uncredited)

Jeon Eun-hye

Neurology Nurse (uncredited)