Full cast of Once Again
Kim Bo-yeon
Choi Yoon-jung
100 episodes
Im Jung-eun
Sung Hyun Kyeong
100 episodes
Moon Woo-jin
Kim Ji Hoon
100 episodes
Ki Do-hun
Park Hyo Shin
100 episodes
Kim Ju-Young
Song Yi
100 episodes
Lee Ga-yeon
Song Seo-Young
100 episodes
Ahn Seo-Yeon
Song Seo-Jin
100 episodes
Song Da-eun
Kim Ga-yeon
100 episodes
Jang Won-hyuk
Lee Jong-soo
100 episodes
Alex Chu
Lee Jung-rok
100 episodes
Song Min-jae
Yoo Shi-hoo
100 episodes
Shin Soo-jung
Park Ji-yeon
100 episodes
Kim Hyeon-mok
Hong Sung-woo
100 episodes
Kim Mi-eun
Shin Hye-jeong
100 episodes
Bae Ho-geun
Im Seung-hyun
100 episodes
Han Bom
Oh Yeon-jin
100 episodes
Lee Sang-kyung
Shim Jeong-hee
100 episodes
Woo Hyun-seo
Yeo Jin
100 episodes
Lee Da-hae
Hae Yeong
100 episodes
Kim Nu-rim
Lee Joo-ri's brother
100 episodes
Shin Mi-yeong
[Dried fish shop owner]
100 episodes
Kim Ga-young
[Twisted bread stick shop owner]
100 episodes
Jeong Ye-nok
[Da Hee's classmate]
11 episodes
Lee Kyu-sub
[Father of Na Hee's patient]
2 episodes
Lee Keon-gu
[Car driver]
2 episodes
Park Sun-young
[Cho Yeon's guest]
1 episode
Ri Woo-jin
Cho Yeon's father / Monk [Young]
1 episode
Park Geon-Rak
[Detective]
1 episode