Vanishing Time: A Boy Who Returned

Gang Dong-won

Sung-min

Shin Eun-soo

Su-rin

Lee Hyo-je

Young Sung-min

Kim Hie-won

Do-gyoon

Kwon Hae-hyo

Baek-gi

Kim Dan-yul

Young Tae-sik

Um Tae-goo

Tae-sik

Park Jong-hwan

Jin-sung

Moon So-ri

Dr. Min

Ahn Ji-ho

Sang-cheol

Park Ji-hu

Girl Looks Like Su-rin

Kim Ooh-jin

News Anchor

Kim Kyung-sik

Dean of students

Ahn Sang-woo

Sang-cheol's Father

Bae Yeong-han

Sang-cheol's Father's Friend