Simon

Simon is clever, confident, and usually grumpy because no one ever seems to leave him alone. He uses sarcasm often to push people away. On the rare occasion that he's not grumpy, he ends up speaking very passionately about his interests and does enjoy holding deep conversations.
His biggest flaw is his inflated ego due to being regarded as a genius from a young age. This often leads to him extrapolating information from incomplete details and forming opinions on things that may or may not be accurate.

Due to his father's connections, Simon got a job early working as an alchemist directly for the emperor. At first he enjoyed the work, because he was learning so much from it. The enjoyment was quickly soured however when he was forced to focus on improving the might of the military. He hated not being able to do his own research so much that he spent years figuring out an escape plan, and he was eventually able to hire a smuggler to help him escape the city. He's been on the run ever since, using his alchemy skills to fend off wild creatures as well as earn some extra cash in towns he passes through.