Yoo Ah In accepted the role of a researcher of the Institute of Bioscience and Biotechnology named Ha Yoon Sang, He is Jin Se Kyung’s long-time boyfriend in the drama.
Ahn Eun Jin portrays the character named Jin Se Kyung, a middle school teacher who eventually becomes a volunteer at the Children’s welfare division due to the asteroid avalanche.
On the other hand, Jeon Seong Woo and Kim Yoon Hye were confirmed as well to join the cast members of the said drama.
Jeon Seong Woo transforms into the role of a priest named, Woo Seong Jae, who faces changes after the asteroid crisis outbreak while Kim Yoon Hye takes the role of the commander of a combat service support battalion.
The Fool at the End of the World depicts a story about the situation 200 days before the end of the world. They will begin filming as soon as the final preparations are completed.