Lee Kyung-youngSong Pil-jung Song Young-gyuMa Seok-koo Hyun Bong-sikKim Chang-wook 김한수Ha Joon Ho [Ha Chan Ho's step-brother] Kim Young-ahHa Hye Won [Heiress of Issume Group] Lee Ki-chanKwon Yong Un [Prosecutor] Park Sin-wooSon Jin Su [D&T FinTech CEO] Jung Hae-naChoi Yeon-ji (Eps 2, 14) Moon Ye-wonBaek Un-mi (Eps 10, 11) Park Jin-youngHospital VIP Ward Receptionist Oh Chae-eun[D&T Group secretary] Kim Ji-inTara [Tara's Extreme Eating Show] Ha-minSecretary Lee Hyun-jung (Eps 1) Choi Hyeon-jin[Bully student] 
