Forge and Sunder are red scaled dragonborn twins working as members of Rifft's Boys for the street gang the Wardens. Their father was a blacksmith. They have an older sister named Smelt.
Forge was the first hatched. He is smarter, quicker, and slightly smaller at 6'6".
Sunder was the second to hatch, but is much larger than his "older" twin. A full seven feet, he is tall, even for a dragonborn, and looks even more draconic than is common for his bloodline.