This is Lucid, the submission from Scorn. He is fully detailed in this alias.
As an Arcanist he is a full arcane caster focusing on party buffs and battlefield control. And with his Occultist archtype he can cast Summon Monster as a standard action that last a minute per level AND he can do this multiple times a day. He will likely take Craft Wondrous Item at 7th level and can craft items for the party during downtime.
Lucid hails from Brevoy where he was raised in an upper class neighborhood by parents of minor nobility. His education was superior and included both the best schools and private tutors. He was a gifted student and grew into an outstanding scholar. As a young adult he began to show talents in the Arts arcane.
He initially considered trying to gain a charter to enter the Stolen Lands when they were first offered but Arcanist training and family business delayed him. But now he was being asked to lend his magical talents to a group who had lost their arcane caster and he saw this as his chance to both make a name for himself and perhaps make some coin while furthering his arcane career. And he had grown tired of the politics and infighting and intrigue at home. He was ready for a fresh start.
Lucid is a handsome human male and knows it. In his mid 40s, he has the hint of grey highlights in his hair. His eyes are ice blue and he is quite perceptive. His sharp features may stem from his Azalnti ethnicity. He dresses sharply in adventuring garb and is always clean and tidy. He is used to being the smartest man in the room and can be a little vain about both his appearance and intellect. But he is too smart to let his vanity become too much of a disadvantage and keeps most of such thoughts to himself. He is often seen with his hawk familiar and has been known to use the bird to deliver party buffs from range.
He knows he is a competent caster and prides himself on problem solving. While a team player he is not one to follow rules too closely. He builds lasting friendships and goes out of his way to help his friends. He is chaotic good in alignment and reveres Sarenrae.