Samael is a Fallen Angel, a Seraptis Demon.
Ages ago, Samael raped a human female. Clytie comes from that bloodline thereby giving her the Sorcerer Abyssal Bloodline class feature.
Clytie is the last of Samael’s “children” which why his “father” has closely monitored and followed her.
Father and daughter met at ShadowFell where he revealed his true identity and relationship.
Samael serves a more powerful Demon Lord (which he does not name yet).
First Appearance: Episode 7