I will also be including some content of Weiss, since it would be wrong to exclude him considering his importance to Nero. Credits for the images can be found at the bottom of this page!
Final Fantasy Fandom Wiki: Dirge of Cerberus concept art gallery
Final Fantasy Fandom Wiki: Nero the Sable gallery
Bradygames Guide: Dirge of Cerberus
Shinra Archaeology: Dirge of Cerberus: Final Fantasy VII - Official Complete Guide
Shinra Archaeology: Final Fantasy VII Remake Material Ultimania Plus
Final Fantasy Trading Card Game (ENG)
Final Fantasy Trading Card Game (JP)