Character Meme?

Since I'm feeling slightly meta-y, and since today has been sort of a day off (someone being in hospital is exhausting, and it's a horrible thing to say, but days where for one reason or another we can't go visit are beginning to feel sort of good - it's not that I don't want to visit Mam, it's that the hospital is an hour away and an hour back, and everyone gets all tight and expansive and nervous every time, and when that's every day it's nice to have a day off sometimes -_-; Yes, I am a horrible person).

Anyway! Ignore that part. Meme!

Pick a character I've written and I will give and explain the top five* ideas/concepts/etc I keep in mind while writing that character that I believe are essential to accurately depicting them.

* Okay, possibly not five exactly, we'll see what happens