Gregor (Hangul: 그레고르, geu-re-go-reu) is designated Sinner #13 of Limbus Company's LCB department. Gregor is a good-humored and composed man with a bit of a competitive side. He was previously affiliated with the Smoke War, having fought for the Old G Corp. alongside other bug-augmented test subjects prior to joining Limbus Company. He is the focus character of the very first chapter, Canto I: The Outcast.
Gregor is a man slightly below average height, with golden-brown eyes, dark brown hair tied back in a ponytail, and a 5 o'clock shadow. He wears half-rimmed black glasses. In most appearances, Gregor is shown with a cigarette in his mouth. He wears the standard Limbus Company uniform, consisting of a white collared shirt, black vest, red tie, black pants, and an ID card, as well as a long coat, which he does not typically wear. His sleeves are both rolled up to his elbows, and a tattoo reading the word "UNGEZIEFER" is visible on his left forearm. His most notable feature is his right arm, a segmented limb that terminates in a massive, claw-like appendage. Much like the protagonist of The Metamorphosis which he is based on, Gregor's right arm is never attributed to a single particular insect, but instead combines the characteristics of multiple different insects, though he is most frequently associated with cockroaches.
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. He also possesses a "cutesy" side to his personality, usually poking through when he is embarrassed. Both Canto II and III see him acting out a bit and failing miserably, leading to him growing flustered and sheepish. This comes with a tendency to use tacky phrases, such as "bugger", "shoot", and "whoop". However, in all such cases that end with him humbled, Gregor proves himself to be a good sport. Ultimately, his time spent on the battlefield leads Gregor to value the casual day-to-day. Gregor is characterized as one of the more ordinary members of the LCB, and tends to react to situations more than he engages with them. He's inclined to sit comfortably as one of the less talkative Sinners, chiming in for minor matters and letting the others take the wheel. As a result of his earlier years having been spent according to the whims of his mother, Gregor is easily pulled into things, regardless of his wishes. Through humor and a mild nature, Gregor tries to live contently in the present, doing his best to put his years of war behind him.