Inad was an Ullian telepathic historian. She was an expert in telepathic memory retrieval.
In 2368, she was part of a delegation that visited the USS Enterprise-D. One of her delegation attacked Counselor Deanna Troi telepathically in a manner which caused people to fall into a coma. Inad aided in finding the guilty party, which was revealed to be Jev. (TNG: "Violations")
Inad was played by actress Eve Brenner. She was described in the script notes as being "a white-haired female alien" who was "quite a bit older than Tarmin."
Her costume was sold off on the It's A Wrap! sale and auction on eBay. [1](X) [2](X)