Age:
11

Physicality:
5 foot. Slim, small stature.
Shaggy light brown hair and mischievous hazel eyes.
A slender face with high cheekbones and a large, crooked nose.
Slightly tanned skin.
Often dresses formally, wears collared shirts under sweaters, or button ups with ties.
Has a thick Irish accent, speaks with a warm yet high voice.

Mental Description:
Selfless and ambitious - A hint of cunning and wit. Dreams of being an Auror (or perhaps a shopkeeper for a store like Zonkos...)
Often doubts his abilities, doesn't believe he's at good as dueling or potions as he is. His favorite subject is potions and has quite a gift for it.
Has a terrible fear of trolls.

Biography:
He has a twin sister; Anne Caulfield.
Their muggle mom and wizard dad are both very expecting of their children.
They lived a wealthy childhood but expectations were - and are - high.
Their wizard dad dabbled in the Dark Arts, but quit as soon as he met their mother.
Their mother is a psychiatrist in the muggle world and an avid soccer player.
Anne was never a sport player, preferring reading books. Arnett was the complete opposite, a troublemaker and Quidditch lover. The two often clashed due to how different they are. Anne being a teacher's pet and Arnett seeking attention through being a class clown.
Their dad taught them how to play Quidditch early on, and Arnett took a liking for being a chaser.

First Instance of Magic:
Arnett's first instance of magic was a sudden cake explosion on his and Anne's 9th birthday. Anne had gotten a present she wanted, but Arnett did not. His jealousy took over, rage boiled inside him, and as the anger grew, the cake rattled and exploded, sending pink and blue frosting across their dining room. Arnett was stunned, though his parents were proud.