More Than Blue

Kwon Sang-woo

Kay

Lee Bo-young

Cream

Lee Beom-soo

Cha Joo-hwan

Jung Ae-yeun

Je-na

Lee Han-wi

President Kim

Jong-hak Choi

Sa-pa-mi engineer

Wung-hoe Gu

Young Kay

Im Chul-hyung

Catgirl's song writer

Eun-ran Jo

Min-cheol's wife

Myeongsin Kim

Kay's birth mother

Kyeong-seon Kim

Wedding manager

Ha-jin Lee

Japanese rocker

Nam Gyu-ri

Catgirl

Lee Seung-chul

Singer A

Jung Joon-ho