Ji Sung

as Jang Jae-gyeong

14 episodes

Jeon Mi-do

as Oh Yoon-jin

14 episodes

Lee Hyun So

as Park Joon-Seo (teen)

14 episodes

Kwon Yul

as Park Tae-jin

14 episodes

Kim Kyung-nam

as Won Jong-soo

14 episodes

Lee Sang-jun

as Kim U-sung

14 episodes

Jung Yoo-min

as Choi Ji-yeon

14 episodes

Jung Soon-won

as Heo Joo-song

14 episodes

Yoon Na-moo

as Park Jun-seo

14 episodes

Seo Yi-ra

as Oh Soo-hyun

14 episodes

Jeong Jae-kwang

as Kim Chang-soo

14 episodes

Cha Yeob

as Oh Chi-hyeon

14 episodes

Lee Kang-wook

as Jung Yoon-ho

14 episodes

Cho Han-gyeol

as Young Jang Jae-gyeong

14 episodes

Kim Min-ju

as Young Oh Yoon-jin

14 episodes

Park Keun-rok

as Jung Sang-eui

14 episodes

Yoo Hee-je

as Gong Jin-wook

14 episodes

Ryu Hye-rin

as Kang Si-jung

14 episodes

Park Jung-pyo

as Yoo Gyeong-hwan

14 episodes

Yoon Sa-bong

as Jung Yeon-joo

14 episodes