Han Geu-ru

as Cha Yeon-jin

3 episodes

Kim Jung-tae

as Yoo Sung-ho

3 episodes

Park Hyo-ju

as Min Ji-young

3 episodes

Baek Do-bin

as Choi Tae-young

3 episodes

Kim Roi-ha

as Jang Se-wook

3 episodes

Jeon Mi-seon

as Cha In-sook

3 episodes

Jeon Kuk-hwan

as Kwon Do-hwan

3 episodes

Kim Dong-jun

as Go Young-min

3 episodes

Bae Noo-ri

as Nal Na Ri

3 episodes

Kim Sa-hee

as Scientist

3 episodes