Moon Seong-hyun

as Na Yi-soo

12 episodes

Kim Si-gyeong

as Han Ba-tang

12 episodes

Hwang Hye-jin

as Do Mi-sol

12 episodes

Choi Ji-hye

as Son Eun-bin

12 episodes

Lee Hyo-bin

as Koo Se-ra

12 episodes

Yoon Hyun-suk

as Boo Ra-won

12 episodes

Cha Joon-hyuk

as Seok Ho-kyu

12 episodes

Ki Hyun-woo

as Pi Dae-hee

12 episodes

Lee Chang-ho

as Lawyer Hwang

12 episodes

Kim Won-hun

as Teacher Yoo

12 episodes

Kim Soo-bin

as Teacher Baek

12 episodes

Kim Ri-won

as Nutritionist

12 episodes

Hwa Sung

as Na Yi-soo's Mother

12 episodes

Lee Seung-ju

as Kang Si-eun

12 episodes

Jung Myeong-yeon

as Han Ba-tang's Mother

12 episodes