 Jeon Do-yeonSang-min | Sang-min |
 Gong YooKi-hong | Ki-hong |
 Park Byung-eunJae-suk | Jae-suk |
 Lee Ru-ahnMoon-ju | Moon-ju |
 Park Min-jiHa-jung | Ha-jung |
 Yoon Se-aSe-na | Se-na |
 Min Moo-jeSe-na's Boyfriend | Se-na's Boyfriend |
 Jung Sun-kyungSang-hee | Sang-hee |
 Jeon Ik-ryoungHyo-seon | Hyo-seon |
 Kim Hye-okMoon-ju's Mother | Moon-ju's Mother |
 Baek Sang-heeSoo-hyun | Soo-hyun |
 No Kang-minJong-hwa | Jong-hwa |
 Kang Ji-wooYoo-rim | Yoo-rim |
 Kim Young-sunLady Helper | Lady Helper |
 Jung Soon-wonHead of Department Han | Head of Department Han |
 Kang Shin-chulKi-hong's Friend | Ki-hong's Friend |
 Lee Ji-hoonKi-hong's Friend | Ki-hong's Friend |
| LLee Sang-wonKi-hong's Junior | Ki-hong's Junior |
| GGabriel DyeSang-hee's Boyfriend | Sang-hee's Boyfriend |
| LLee Bo-yeongHead of Department Han's Assistant | Head of Department Han's Assistant |
| HHa-hyeonSang-hee's Assistant | Sang-hee's Assistant |
 Heo Hyung-kyuConstruction Site Team Leader Heo | Construction Site Team Leader Heo |
| WWoo Ji-anFemale Employee Yoon-jeong | Female Employee Yoon-jeong |
| YYang Na-raeFemale Employee Na-rae | Female Employee Na-rae |
| HHwang Bo-ranFemale Employee Ran | Female Employee Ran |
 Jeon Han-naMoon-ju's Friend | Moon-ju's Friend |
| JJeong Ah-rangMoon-ju's Friend | Moon-ju's Friend |
 Kim Se-inMoon-ju's Junior | Moon-ju's Junior |
 Lee Soo-inKi-hong's Friend's Wife | Ki-hong's Friend's Wife |
| KKang Min-jiKi-hong's Junior's Girlfriend | Ki-hong's Junior's Girlfriend |
