Castor Lucero is inspired by classic noir detectives. But, imagine if a rugged, Irish detective were a chaperone at an American middle school in the English countryside. He's technically retired as a detective to teach at the university, however, the small town police kinda suck at their job. So, while he's supposed to only teach magic forensics, he might as well still be the head detective on the local police force.

His voice should be gruff with an Irish accent. His general tone should sound like a very exasperated dad that has a lot to do (in his defense, he's working two jobs and also dealing with three college students with a penchant for causing trouble).