Yeon Woo

as Lee Hye-jung (12 episodes)

as Han Jeong-yeon (3 episodes)

as Kim Bi-ah (8 episodes)

as Cha Mi-Ryeong (16 episodes)

as Hong Cho-won (12 episodes)

as Self

as Lee Sae-na (12 episodes)

as Jin Yeon-ah (12 episodes)

as Oh Yeo-jin (16 episodes)

as Ahn Chak-hee (16 episodes)

as Mi-rae (16 episodes)

as Kang Jae-yi (8 episodes)

as Yoon Tae Yeon (16 episodes)

as Self (3 episodes)

as Self (12 episodes)

as Yeon-woo (10 episodes)

as Self (1 episode)

as Trainee (1 episode)

as Self (2 episodes)

as Self (1 episode)