Jung Geum-ja
Yoon Hee-jae
Song Pil-jung
Kim Min-joo
Ma Seok-koo
Sim Yoo-mi
Ga Gi-hyeok
Kim Chang-wook
Boo Hyun-ah
Na Yi-joon
Lee Ji-eun
Ha Joon Ho [Ha Chan Ho's step-brother]
Ha Chan Ho
Ha Hye Won [Heiress of Issume Group]
Kwon Yong Un [Prosecutor]
Kim Yeong-jun
Son Jin Su [D&T FinTech CEO]
Choi Yeon-ji (Eps 2, 14)
Baek Un-mi (Eps 10, 11)
Hospital VIP Ward Receptionist
[D&T Group secretary]
Tara [Tara's Extreme Eating Show]
Secretary Lee Hyun-jung (Eps 1)
[Bully student]
