as Jo-hyeon: A relentless head agent tracking the witch. Lee Jong-suk as Jang: Director of the secret lab. Jin Goo as Yong-du: A local gang leader.
as The Girl (Ark 1 Datum Point): Selected from over 1,400 candidates for this leading role. as Jo-hyeon: A relentless head agent tracking the witch
as Kyung-hee: The civilian who takes the girl in. as Jo-hyeon: A relentless head agent tracking the witch