- "I want to make a purchase."
"Excellent. Of what kind?"
"Of the secretive variety...."
- — Cadden Blackthorne ordering Black one-eighteen
Cadden has owned two Human Replica Droids during his lifetime, both modeled to look, and behave, exactly like him. The first, Black one-eighteen, was ordered from a scientist, specializing in droid technologies. It is unknown why Cadden named this HRD this, possibly having something to do with a code, or maybe to represent a time of significant importance in Cadden's life. Either way, this HRD helped Cadden acheive several great things. Amongst these was the construction of Blackthorne Enterprises and the sacrificing his own life to save Cadden's.
The second HRD, whom Cadden named Neddac, was meant to be as a companion and aide in his travels. Constructed and programmed in the Udine system, Neddac was of custom design, and made a bit sturdier than his predecessor. After analyzing the data of Black one-eighteen and looking at Cadden's current skills, Neddac was updated to be faster, deadlier, and more proficient than before. He also sported more weaponry within his infrastructure, such as a second concealed blaster cannon in his right arm, as well as an attachment for a third, more powerful cannon, for his right arm.