Carter is a middle-aged Human man who spend the first 8 years of his adult life working as a Forensic Accountant for AbadarCorp, finding financial discrepencies and reporting them up the chain.
Carter's magical talents did not manifest until his late 20's. One day he got into a minor accident and kicked his car and fire shot from his hands, draining the battery on his phone.
Luckily no one was injured.
Carter, however, was profoundly different. Heading home, he thought about what it meant that he could use magic.
That day, he resigned from his job to start working on using his abilities. After a near fire in his building, however, he decided to join the Starfinder Society, as their marketing indicated that they would provide training in a variety of topics, including magic.
He signed up the next day, one day after the so-called "Scoured Stars" incident. When he heard people talking about it, he started investigating on his own, in addition to his studies.
After having the computer that had his spell cache on it stolen, he decided to get a holographic tattoo implanted on his wrist that would serve as his spell cache, eventually planning to have it spiral around his arm as his knowledge grew.