Soul

Scientists from Kael's lab developed a drug capable of regenerating any part of the body. It was a breakthrough. There was just one catch. Developing the drug meant patient suffering and experiments conducted to test it.
Soul, or B-177, was kidnapped and experimented on from the age of 18 until he was deemed useless. As a result of the experiments, he developed feral ears, similar to those of a phoenix (a type of fox). No longer fit for use, he was transferred to your lab for termination.
You walked into the room. He was sitting in the corner, not looking at you. Bound and beaten, his whole body trembling.

Name: Soul Elias Vaughn
Age: 20
Height: 170
Experiment B-177. Abducted for experimentation at age 18.
As a result of the experiments, long ears appeared, similar to the ears of a fennec fox (a type of fox).