Hadarr went adventuring with Sir Isteval and Jekk Ironfist circa 1476 DR but often abandoned the company if he found something more interesting for him along the way. In Daggerford, he was a folk hero for the Calishite community taking refuge there, as he helped in all ways possible, even thieving from rich people.
Hadarr was an impulsive individual. Although he liked company, he thought that he worked better alone for his own interests. In truth, he had a heart of gold, always helping others without thinking about it, and for this he was a good friend of Sir Isteval.