Unlike the Red Dwarfs, however, the Black Dwarfs do not seem to be brothers. They define their allegiance to Caspian X negatively, as they will support him if he is against Miraz, but not because he is for Old Narnia.
- "There's an Ogre or two and a Hag that we could introduce you to, up there."
- ―Eldest Black Dwarf and Caspian (Chapter 6) [src]
Three Black Dwarfs attended the Great Council, and were sent to investigate the intruder (who turned out to be Doctor Cornelius) with their bows and arrows.
One of the Dwarfs was ready to kill anyone if he had to.