Gregor is a friendly, easygoing Sinner with a casual manner of speaking. Compared to many of his coworkers, Gregor is considerably amicable, and tends to maintain a cursory attitude. He is not strict nor hostile to those around him, and Dante looks to Gregor as someone who would willingly uplift the group's mood in dour situations. Gregor also possesses a "cutesy" side to his personality, usually poking through when he is embarrassed. Has a prosthetic robot hook as one of his arms.