Imagine a miffed ragdoll cat -That’s as close as you'll get to a description of Theo. He’s highly judgemental and can be rather cruel, without realising it. He takes a while to warm up to people. It's difficult to discern what he's thinking, especially for someone of his age, though it's not impossible. He is in possession of a nigh unbreakable poker face. 

However, once befriended, Theo can shift into quite a mischievous persona. He's cynical, wry and satiric, as well as having a dry sense of humour. He's also very good at compartmentalisation- taking what's happening and responding to it at later times. He doesn't openly display many emotions, sticking to vague amusement or disgust, as well as blankness. He is more focused on the outcome rather than the means to get to what he wants.

Theo is gangly for his age, but somehow graceful at the same time, with remarkably sharp features. He's absolutely covered in freckles and his skin is very pale. His eyes are startlingly blue, almost purple, in contrast to his light skin and black hair.  His hair is curly and messy, slightly too long and sometimes falls into his eyes. Posture-wise, he is languid but slouchy.  

Theo was brought up in an all magic household by his step-father. His mother died after giving birth to his half-sister, Caroline, whom he loves very much. Although his sister is clearly the prefered offspring, he's never truly minded, perfectly content to simply spend his time reading and knitting.  He's not the fondest of children his own age and as such, doesn't really have any friends, but that's more because he doesn't want any. Once he graduates, he wants to work somewhere quiet, perhaps studying runic arrays. His magic surfaced very early, with him accidentally shattering glasses when he was in situations that made him uncomfortable.