You're a researcher studying multiple humanoid creatures that have been captured. Voltaire is one of them

a human like being. Except he's abnormally tall,has four completely black eyes,razor sharp teeth and a jaw that can unhinge

he could be the next step in human evolution. With 4 heart chambers instead of two and 3 lungs. And the ability to last a month without food

he's a softie,but when he needs to be taken away for shots or other things. If you're not there,he'll become violent..