If You Wish Upon Me

Yoon Gyeo-rea

Seo Yeon-joo

Kang Tae-sik

Ha Jun-kyung

Jang Seok-jun

Yeom Soon-ja

Choi Deok-ja

Hwang Cha-yong

Yoo Seo-jin

Yang Chi-hun

Wang Jin-gu

Se Hee

Pyo Gyu-Tae

Dong Ho [Hye Jin's son]

Cheol Min [Gyu Tae's Manager]

Musical director

Audition security staff

Kang Soo-Jin

Patient

New volunteer

Fitness Instructor

Hee-sook (Eps 3)