The official website describes Nick as the perfect amount of shy nerdiness and handsome athleticism. He has a hard time letting his guard down around others and letting people in. He also has a tendency to fall in line with the others around him, most notably Jacob.

Nick is infected and is a werewolf. When infected, he is brash, rude, possessive, and mean. Once he officially turns into his werewolf form, he is animalistic and doesn't think clearly.