https://forgottenrealms.fandom.com/wiki/Hadarr_Karayaka
Hadarr Karayaka was a Calishite explorer and 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.
Hadarr went adventuring alongside Sir Isteval and Jekk Ironfist until some point before 1476 DR, but often abandoned the company in favour of something more interesting to him along the way.