- Jeon Su-in (Jeon), who was attacked by a Parasite, but when it fails to take over her brain, she enters a bizarre coexistence with it.
- Seol Kang-woo (Koo) who is pursuing Parasites to find his missing sister
- Lee's character who is the leader of The Grey, a task force battling Parasites, whose husband was killed by them.
Directed by Yeon Sang-ho (Train to Busan) with scripts by Ryu Yong-jae (Money Heist: Korea), the series is set to stream exclusively on Netflix worldwide.
[Source: Anime News Network]