A dutiful and reckless Catholic priest who is a member of 634 Regia. Twenty years prior to the series, Soo-min and his father, along with priest Moon Ki-seon, witnessed the death of his mother at a young age, where she was possessed and killed by a demon due to his father's refusal to believe in exorcism preventing her from receiving one. Under priest Moon's tutelage, he becomes an exorcist.
A doctor at Southern Catholic Hospital who lost her faith in God at a young age when her parents died in front of her in an accident, she first encountered Soo-min when her most recent patient turns out to be possessed by an evil entity. Witnessing the exorcisms of both the patient and the subsequent possession of a colleague by the same entity caused her to rethink her beliefs.
A senior Catholic priest who founded 634 Regia, a group of priests that performs exorcisms unofficially while still recognized by the Vatican. When he was younger, he was called upon by Soo-min to save his mother but was too late. He was the one who takes Soo-min under his wing and taught him how to conduct exorcisms.
In the table above, the blue numbers represent the lowest ratings and the red numbers represent the highest ratings.
This drama aired on a cable channel/pay TV which normally has a relatively smaller audience compared to free-to-air TV/public broadcasters (KBS, SBS, MBC and EBS).
