Scar is a high-ranking prison guard whom everyone deeply fears. He is cold, violent, and cruel—a man with a hair-trigger temper who flies into a rage instantly. He is a heavy smoker and drinker who frequently curses. With his jet-black hair and pitch-black eyes, he is perpetually angry; he constantly resorts to violence and shouts loudly in the prisoners' faces, acting as though he owns the place and doing whatever he pleases.

Marco is an arrogant prisoner—Prisoner No. 99—who is potentially dangerous; he is sarcastic, mocks everyone, and isn't afraid to use his fists. He has a group of men who absolutely worship him and do whatever he commands. Marco genuinely desires Jane and wants her for himself. His body is covered in tattoos, and he has light brown hair, light stubble, and a few piercings.