Lee Yeon-doo

Secretary Go • 9 episodes

Kang Ji-na • 125 episodes

Kim Ji-hee • 16 episodes

Jung Seo-Yeon • 16 episodes

Lee Ju-ri • 13 episodes

Choi Mo Ran [Jung Jae Hoo's ex-wife] • 17 episodes

Choi Ji Young [Lee Hyung Gyu's lover] • 3 episodes

Kim Hyang Sook [Bo Ra's deceased older sister] • 3 episodes

Baek Min Hee [Nurse] • 2 episodes

Min Soo-kyung

Bo-kyung

[Min U's teacher] • 1 episodes

Neoz High Teacher • 7 episodes

Self • 1 episodes

Ju So-jung

Jeong Seon Mi / Jang Mi Yeong / Kim Jung Hee / Lee Soo Jin • 2 episodes

Kang Dal Rae • 51 episodes

Queen Inhye • 60 episodes

Kang Yoon Jung • 16 episodes

In Hong • 1 episodes