 So Ji-subHyeong-do (Ji Hyeong-do) | Hyeong-do (Ji Hyeong-do) |
 Lee Mi-yeonMi-yeon (Yu Mi-yeon) | Mi-yeon (Yu Mi-yeon) |
 Kwak Do-wonJong-tae (Gwon Jong-tae) | Jong-tae (Gwon Jong-tae) |
 Kim Dong-junHun (Ra Hun) | Hun (Ra Hun) |
 Jeon Kuk-hwanCEO Jeon (Jeon Hyuk-soo) | CEO Jeon (Jeon Hyuk-soo) |
 Lee Kyung-youngTeam Leader Ban (Ban Ji-hoon) | Team Leader Ban (Ban Ji-hoon) |
 Han Bo-baeBo-seul (Ra Bo-seul) | Bo-seul (Ra Bo-seul) |
 Jang Da-kyungAssistant Manager Seo (Seo Min-hee) | Assistant Manager Seo (Seo Min-hee) |
 Yoo Ha-bokDirector Jin (Jin Chae-gook) | Director Jin (Jin Chae-gook) |
 Park Jin-wooDetective Jo (Jo Myeong-deok) | Detective Jo (Jo Myeong-deok) |
 Kim Seo-wonDetective Choo (Choo Min-woo) | Detective Choo (Choo Min-woo) |
 Jeong Dae-yongTeam Leader | Team Leader |
 Lee Jun-hyeokChief Do (Do Jae-wook) | Chief Do (Do Jae-wook) |
 Hong Hee-wonAssistant Manager Goo (Planning Team) | Assistant Manager Goo (Planning Team) |
| SSeo Dae-hyeonChief Park (Chief of Staff) | Chief Park (Chief of Staff) |
| PPark Ju-hyeAssistant Manager Choi (Secretary) | Assistant Manager Choi (Secretary) |
| YYu Na-miMiss Ahn (Front Desk) | Miss Ahn (Front Desk) |
| HHong Kyeong-yeonManager Yang (Materials & Equipment Team) | Manager Yang (Materials & Equipment Team) |
 Lee Chae-eunManager Park (General Affairs Team) | Manager Park (General Affairs Team) |
 Seo Chong-juSection Chief Oh (Materials & Equipment Team) | Section Chief Oh (Materials & Equipment Team) |
 Hwang Seok-haManager Im (Planning Team) | Manager Im (Planning Team) |
 Lee Jae-yoonNew Recruit (Sales Division 2) | New Recruit (Sales Division 2) |
 Kim Chang-hoiEmployee Yoon (Planning Team) | Employee Yoon (Planning Team) |
 Chun Sin-hwanSales Division 2 Employee | Sales Division 2 Employee |
 Ha Soo-hoSales Division 2 Employee | Sales Division 2 Employee |
| SSong Seon-hongPlanning Team Employee | Planning Team Employee |
 Na Ju-hoPlanning Team Employee | Planning Team Employee |
| JJi Eun-ilMaterials & Equipment Team Employee | Materials & Equipment Team Employee |
| HHa Jung-hoonMaterials & Equipment Team Employee | Materials & Equipment Team Employee |
 Shin Yoo-ramMaterials & Equipment Team Employee | Materials & Equipment Team Employee |
