Fraudrin/Dreyfus

Fraudrin is a high-ranking demon from the Demon Clan in The Seven Deadly Sins anime (Nanatsu no Taizai). He serves as a secondary antagonist, particularly prominent in the earlier arcs involving the Holy Knights and the resurrection of the Demon Clan.

In the anime, Fraudrin has been possessing the body of Dreyfus (the Great Holy Knight and brother of Zaratras) for about 10 years. While in Dreyfus's body, he appears as Dreyfus but with a distinctive curved demon mark across his left eye. His true demonic form is a massive, towering purple-skinned monster with spiky protrusions, scales, and his mouth located on his chest rather than his face.

He is cunning, manipulative, and ruthless, showing no hesitation in using humans as pawns. He conspired with Hendrickson (whom he also possessed or influenced at times) to assassinate Great Holy Knight Zaratras, frame the Seven Deadly Sins for the crime, and destabilize the Kingdom of Liones—all as part of a long-term plan to unseal and revive the Demon Clan. He is associated with the Ten Commandments (as a substitute for the missing original member, bearing the commandment of Selflessness), though he views himself as a temporary stand-in.

His signature ability is Full Size, which lets him dramatically enlarge his body to gigantic proportions, vastly increasing his destructive power. In the anime, he plays a key role in the buildup to the Demon Clan's return and has notable confrontations, including one with a powered-up Meliodas.