Park Hae-jinKang San-Hyeok Ryu Seung-suBong Dae-Yong Lee Do-gyeongChoi Jung-Mok Lee Si-hoonPark Hyung-Soo Woo Jung-kookKi Pil-young Geum Gwang-sanYang Cheol-sik Choi Gwang-ilKwon Joo Han [Managing Director, Taesung Group] Kim Min-seokDoctor [Young Jae’s friend] Im Byeong-giChairman Hwang Seok Ho [Haeseong Precision] Ahn Ryeo-jinSecretary (Eps 2) 
