0-CX, also called Zero-Cee, was a C-series protomech manufactured by Industrial Automaton. Like the others in his line, 0-CX could perform a wide range of tasks, including protocol droid services, starship repair, espionage, and killer piloting. Zero-Cee was tracked to the junk planet Raxus Prime by members of Direcat squad. A datapad on his person revealing the location of key Death Watch locations of interest was discovered after Lieutenant Bez dismantled him.