Broadway is the typical eat too much, kind of puny guy. One really unique trait among his brothers is that he loves cinema - particularly police movies. In one episode he picks up Elisa's gun and it discharges, injuring Elisa. Since the incident he hates guns and tries keep them off the street.
Demona was originally with the clan from Scotland, but she wasn't destroyed or frozen in stone after the attack. She was aging and dying as she survived the ages until a deal was struck with Macbeth and she regained her youthful vigor as well as a need for vengeance. She now searches for ways to destroy all humans and vehemently opposes Goliath's protection of humans - as such she is also a main villain of the series.