Park Seo-yeon

as Kang Yi-ji

as Seo-woo

as Baek Song-i (12 episodes)

as High School Girl

as Choi Na-ri (2 episodes)

as Kim Se-jung

as Kang Ah-reum (16 episodes)

as Baek Young Joo (3 episodes)

as Chae Yi (1 episode)

as Kim Dan-o (4 episodes)

as Seo Dan (young) (1 episode)

as Yoo Ari (20 episodes)

as Gong So Hee [Seung Cheol's daughter] (2 episodes)

as Sister

as Young Chung-ee

as Jin-hee

as Yeon-i

as Young Shim Mi-jin

as Sun-a