Intellect: Cullen is very intelligent despite his time being on the run, Cullen has shown multiple time his intelligence while helping the team and Stephanie with research.Hand-to-hand combat: Cullen is capable of handling himself in a fight, indicated in his escape from the transport vehicle.Acrobatics/Free-running: Cullen is fairly acrobatic, able to free-run and jump over cars and land with ease.While in high school, Cullen and Harper's mother left, which forced Harper to drop out of school despite being seven months away from graduation and run away with Cullen, fearing that their father would only escalate in his violence.
Unfortunately, only his sister supported his desire to transition, while their parents on the other hand, particularly their father, was not only unsupportive, but abusive as well. Although born physically a girl, at a young age, Cullen realized he was actually a boy.