Overweight detective Cha Chul-soo transforms himself into a model and has to lose his weight in two weeks to solve a criminal case.
| Actor | Role |
|---|---|
 Kang Ji-hwanCha Cheol-soo | Cha Cheol-soo |
 Sung Yu-riGo Yeong-jae | Go Yeong-jae |
 Lee Soo-hyukKim Sun-ho | Kim Sun-ho |
 Kim Young-kwangHan Seung-woo | Han Seung-woo |
 Shin Min-chulMin-seung | Min-seung |
 Shin Jung-keunSquad Chief Yoo | Squad Chief Yoo |
 Lee Hee-junKyeong-seok | Kyeong-seok |
 Kim Ji-youngYoung Young-jae | Young Young-jae |
 Park Bo-gumYoung Cheol-soo | Young Cheol-soo |
 Ra Mi-ranTeacher Song | Teacher Song |
 Park Jeong-hakRepresentative Tak | Representative Tak |
| LLee Dae-jinDesigner Jin | Designer Jin |
 Choi Gwi-hwaDetective Pyung | Detective Pyung |
 Kim Jung-palBus Driver | Bus Driver |
| CChoe Yoon-seulDesigner Seul-li | Designer Seul-li |
 Hong Seok-cheonShow Director | Show Director |
 Heo Myeong-haengTeacher | Teacher |
 Kim Woo-binModel | Model |
 Kim Yeon-sooHairstylist | Hairstylist |
| PPark Yeong-woongTeam Leader Park / Truck Driver | Team Leader Park / Truck Driver |