Han Duren was a male Betazoid counselor in Starfleet in the 24th century. As of 2377, he was stationed at Starfleet Command in San Francisco, and that year was assigned to Dr. Elizabeth Lense, following the mysterious death of her mother, Jennifer Almieri.

During this assignment, Duren was murdered by a shapeshifter from Drura Sextus, posing as Dr. Preston Strong. (CoE eBook: Ghost)