Fraudrin is a manipulator by nature who enjoys toying with other people's emotions. He is very patient, waiting for years before initiating his plans to get revenge on Meliodas and to revive the Demon Clan, only moving when the time is right. He enjoys being inside of Dreyfus' body but worries that being inside of a human has made him soft. Those concerns later prove to be true, as Fraudrin hesitates to kill Dreyfus and Hendrickson when he hears Griamore shouting for his father, showing that Fraudrin grew attached to his life as a human. When he threatened to kill Meliodas by self-destructing, he ultimately could not bring himself to do it since Griamore would be caught in the explosion. After death, Fraudrin gave his magical ability Full Size to Dreyfus to help him protect his son. He has a manipulative medium-low pitched voice.