휘파람 공주

Ji Sung

Jun-ho

Kim Hyun-soo

Ji-eun

박상민

Seok-jin

İn Gyo-jin

Soo-il

Sung Ji-ru

Sang-chul

Lee Hyeong-cheol

Roy

Jang Kwang

유채영

장남열

Waiter

이광기

Jong Kil

전원주

Female owner of rooftop room

Kang Joo-sang

Gyeong-soo