Physical Description: Black hair, grey eyes and very pale skin. At a glance, Taylor's irises resemble diamonds. This is due to a non-magical birthmark that created black moles on his pale grey irises which were arranged in a pattern resembling the refraction of a cut diamond. He feels insecure about this trait and the attention it attracts and keeps his gaze lowered as a result. He wants to grow out bangs but is discouraged from doing so by his brother. Taylor is scrawny and not particularly strong.

Mental Description: Very quiet and reserved, follows rules to the letter. Picks up and understands concepts very rapidly, and was considered a child prodigy at school before coming to Hogwarts. Excelled in STEM subjects and was terrible at literature. Cautious and observant, poor understanding of emotions.

Biography: Raised by his older brother of fifteen years, William Greene, since the age of three as their parents were not in positions to take care of him due to work and medical reasons. William Greene was greatly trusted by his parents, and the Greenes even went so far as to allow William to access their joint account, which he used just as carefully as they expected of their oldest son. An academic prodigy in his own right, William used the allowances he received due to his accolades and scholarships solely to get Taylor nice things, and when William found employment at the age of twenty, he set aside large portions of his paycheque for his younger brother. Taylor shares a close bond with William, though he hesitates to share his problems with him. William would always shower him with gifts and procure him different academic books, which he is grateful for. A loner at his Muggle school, though he was held in high regard by the teachers due to his academic prowess and was spared from drastic bullying as a result.

First Instance of Magic: At the age of nine, when Taylor was writing an English essay, he found himself wishing that the words would flow out of his pen like water, the way it was described in a poem he'd tried to memorize. This led to actual water flowing from the pen nib, ruining his essay. The teacher did not believe his excuse but decided to let him off, seeing that the essay really was ruined by spilled water. They decided that Taylor was trying to use the phrase from the poem to sound cool, and brushed it off, telling him that clarity was more important than flair in communication, much to Taylor's confusion.