One of my favorite things to do is make a Pinterest board for them and collect a bunch of stuff that feels like them. If you do it with the important/main characters, you can really see the difference between the people you make, and it's super cool.

For all of them, it depends on the work. But if it's important, they'll want to do it.

When I was a younger, more inexperienced writer, I loved the idea of them going out with a huge bang and making it full of feels and epic and awful. Now, I just like making it suck for all the other characters involved. xD None of them really WANT to die, for real, but there are some that struggle with living to the point that they'd be okay with just going to sleep and not waking up the next morning. Then I have a couple characters that have died a few times and are like: "It sucks, do not recommend."