Unable to remember anything about his life, a man begins regaining consciousness in a new body every 12 hours. Now, he must piece together his identity, all while evading attacks from pursuing agents and dangerous criminals alike.
| Actor | Role |
|---|---|
 Yoon Kye-sangKang Yi-an | Kang Yi-an |
 Park Yong-wooMr. Park | Mr. Park |
 Im Ji-yeonMoon Jin-ah | Moon Jin-ah |
 Yoo Seung-mokMr. Lee | Mr. Lee |
 Park Ji-hwanTraveler | Traveler |
 Lee Sung-wookMr. Yoo | Mr. Yoo |
 Hong Gi-junMr. Ko | Mr. Ko |
 Seo Hyun-wooMr. Baek | Mr. Baek |
 Lee Woon-sanJi Cheol-ho | Ji Cheol-ho |
 Ju Jin-moMr. Hong | Mr. Hong |
| KKim Min-kyoungMrs. Jeon | Mrs. Jeon |
 Hyun Bong-sikMechanic | Mechanic |
| CCha Hye-rimSoon-young | Soon-young |
| JJeong Yoon-haMin-joo | Min-joo |
 Baek Do-kyeomPolice | Police |
| KKim Seung-beePolice | Police |
 Jung Yun-haMin-ju | Min-ju |
 Choi Dong-guFur Coat Attendant #2 | Fur Coat Attendant #2 |
 Woo Kang-minHippo | Hippo |
| KKim I-seulBrunch Cafe Customer | Brunch Cafe Customer |
| PPark In-gyooVR Guy 1 / Father | VR Guy 1 / Father |