휘파람 공주

Ji Sung

Jun-ho

Kim Hyun-soo

Ji-eun

박상민

Seok-jin

인교진

Soo-il

성지루

Sang-chul

이형철

Roy

장광

유채영

장남열

Waiter

이광기

Jong Kil

Jeon Won-joo

Female owner of rooftop room

Kang Joo-sang

Gyeong-soo