김윤석

Soo-hyun

변요한

Young Soo-hyun

채서진

Yeon-ah

김상호

Tae-ho

안세하

Young Tae-ho

박혜수

Soo-a

김호정

Song Hye-won

Kim Sung-ryung

Yeon-a

Jang Liu

Mother

정인기

Manager Yoon (uncredited)

이유미

Yeon-ah's Staff (uncredited)

박길수

Barbershop Owner (uncredited)