초인

채서진

Choi Soo-hyun

Kim Jung-hyun

Choi Do-hyun

Seo Young-hwa

Yeon-hee

Jeong Jun-hwa

Chemist

Jo Jae-yeong

Mapo Bridge Man

Lee Woo-joo

Library Kid

정종열

Library Janitor

이채경

Psychiatrist

임형국

Do-hyun's Father

Yang Mal-Bok

Se-young's Mother