All Cast

Um Sang-hyun

Um Sang-hyun

Volt

Yang Jeong-hwa

Yang Jeong-hwa

Volt

Jeon Tae-yeol

Jeon Tae-yeol

Sammy

Shin Yong-woo

Shin Yong-woo

Max / Dr Jeremy

Lee So-yeong

Lee So-yeong

Lucy

Soyeon

Soyeon

Anna

Hong Jin-wook

Hong Jin-wook

Chen / Pascal

Sung Wan-kyung

Sung Wan-kyung

Zeus