Jung Chae-yeon

as Marie / Jenny / M (1 episode)

as Song Ji-woo (1 episode)

as Kang Hyo-min / Kang Hyo-Ju (12 episodes)

as Self (1 episode)

as Yun Ju-won (16 episodes)

as Self (1 episode)

as Ham Su-jeong (2 episodes)

as Self (1 episode)

as Na Ju-hee (16 episodes)

as Noh Ha-kyung (20 episodes)

as Self

as Self (2 episodes)

as Han Song-Yi (16 episodes)

as Kwon Na-ra (2 episodes)

as Lee Mi-Yeon (young) (50 episodes)

as Yoon Hee

as Self (1 episode)

as Annie (6 episodes)

as Young Jung Jung-Won (40 episodes)

as Shin Ki-won (6 episodes)

as Self

as Chaeyeon

as Self (8 episodes)

as Chae Yeon (16 episodes)