Son Hyun-joo as Baek Seong-soo

Moon Jeong-hee as Joo-hee

Jeon Mi-seon as Min-ji

Kim Won-hae as Baek Seong-chul

Jeong Joon-won as Ho-se

Kim Su-an as Soo-a

Kim Ji-young as Pyeong-hwa

Gi Ju-bong as Seong-soo's Stepfather

Lee Yeong-mi as Seong-soo's Mother

Lee Jun-hyeok as Sang-man

Noh Susanna as Eun-hye

Jeong Min-sung as Jo Min-hoon

Jo Han-chul as Jung Nam

Son Kang-gook as Young Ho

Seong Yu-bin as Young Baek Sung-chul

Joo Seok Tae as Ex-detective

Ahn Soo-ho as Harbour Man

Kim Hak-ryong as Goods Van Middle-aged Man

Park Geon-gyu as Helmet Delivery Man

Kim Geun-young as Woman Who Erases Graffiti

Jang Yun-sil as Harbor Apartment Next Door

Lee Young-suk as Homeless Man (uncredited)

Ju Seok-tae as Detective (uncredited)

Kim Hye-yoon as Student (uncredited)

Uhm Ji-sung as Young Seong-soo (uncredited)