Dogface was one of the Floozies who worked on the Sol Transit System.
His real name was Yang Chou, which he hadn't used since the Thousand Day War. Famously ugly, he had been with STS since the beginning. He had a deep-seated work ethic that saw him override pain suppression drugs to assist with the extreme circumstances of the Stunnel incident. Finally his boss forcibly placed him in the equivalent of a medical coma to ensure she had at least one member of Special Maintenance around to help her pick up the pieces.
He spent years customising his inspection/repair drones to a point where dumb AI was capable of replicating a version of his unique personality; each was decorated with the face of a different dog breed. (PROSE: Transit)