 Kim Da-miJa-yoon | Ja-yoon |
 Cho Min-sooDr. Baek | Dr. Baek |
 Park Hee-soonChoi | Choi |
 Choi Woo-shikNobleman | Nobleman |
 Go Min-siMyung-hee | Myung-hee |
 Choi Jung-wooMr. Koo | Mr. Koo |
 Oh Mi-heeMrs. Koo | Mrs. Koo |
 Kim Byeong-okChief Do | Chief Do |
 Jeong Da-eunLong Hair | Long Hair |
 Lee Ju-wonPresident Seong | President Seong |
 Kim Ha-naYoung Ja-yoon | Young Ja-yoon |
 Lee Si-wooYoung Nobleman | Young Nobleman |
 Lee Si-hoonOfficer Jang | Officer Jang |
 Baek Seung-chulStore Owner | Store Owner |
 Woo Min-kyuStore Owner's Son | Store Owner's Son |
 Kim Jong-hoonMan 1 | Man 1 |
 Seo Han-gyeolMan 2 | Man 2 |
| PPark Jong-hwanMan 3 | Man 3 |
| JJin Yeong-joonMan 4 | Man 4 |
 Kwak Jin-seokPresident Seong's Subordinate 1 | President Seong's Subordinate 1 |
 Baek Jong-hwanPresident Seong's Subordinate 2 | President Seong's Subordinate 2 |
| NNam Gyeong-minPresident Seong's Subordinate 3 | President Seong's Subordinate 3 |
 Park Sang-hoonPresident Seong's Subordinate 4 | President Seong's Subordinate 4 |
 Kim HyunPresident Seong's Subordinate 5 | President Seong's Subordinate 5 |
 Go Bong-gooPresident Seong's Subordinate 6 | President Seong's Subordinate 6 |
| SSeo Jeong-gooPresident Seong's Subordinate 7 | President Seong's Subordinate 7 |
 Lee Jung-hyoungDr. Baek's Bodyguard 1 | Dr. Baek's Bodyguard 1 |
| PPark Woo-jaeDr. Baek's Bodyguard 2 | Dr. Baek's Bodyguard 2 |
 Kim Han-solA Star is Born Assistant Director | A Star is Born Assistant Director |
| PPark Sin-wooA Star is Born Producer | A Star is Born Producer |
