Charles Mazos is a member of the “Infernal Family”, Madison's brother and personal assistant. He is quite devoted to his sister, supports her ideas and always does her errands. He is responsible for transporting the DSL-38 and selling it to end users, including corrupt representatives of the Great Council, such as Victor Fischer. As a weapon, he uses an ET590 plasma assault rifle and throwing knives made of ultrathin steel.

Charles, along with his sister, was born into the family of military chemist Ridley Mazos. His sister went to prison when she was 25 years old, and a little later his father Ridley also died in a car accident under unknown circumstances. All this had a hard impact on Charles, and he started using drugs. Realizing that he inherited his late father's inheritance, he turns to Henry "Eagle Eye", the head of the ‘’Doomsday Angels’’ criminal gang, with whose help Madison plans to escape from prison. After freeing his sister, he goes with her to Arizona, where they create their own criminal group «Infernal Family", which is headed by his sister. The gang carried out night raids on trade caravans in the desert, ruthlessly destroying the drivers, and sold the loot and divided it among the gang members. After knowing about X-Day in 2175, they moved together to Valkyria in Sector Zero.