This looks to be an amazing idea. I just can't think of a character.
First of all, welcome to Brimstone! This small town could fit another member. I was thinking about how to reply to this for a while now, because I'd love to see new players but I also get this problem quite a lot.
For starters I recommend you read through the character sheets that we already have; take a look at what tropes, what types of people have already been taken. The last thing you want to do is inadvertently make a copycat of someone else's character concept. Once you've ruled out what we've already got, I recommend asking what we've yet to see in town. For example, the amount of adults is SERIOUSLY lacking (I'm talking 30yrs+) compared to the kids - on top of that we have several 'trouble-maker' sorts which means that actually making a well-to-do and mildmannered character would make you stand out. I don't think I've seen any business-owners in the town either, so maybe your character could run a shop/bar/tourist attraction, which brings me on to my last point - the GM and Co-GM here are REALLY invested in the RP and want to make sure you get the best out of it (speaking from experience here) so you can always throw them a couple ideas in a PM or in the OOC, if you want to hear from the normal players too.
Hopefully that's useful, I'd love to see what sort of things you come up with. There's no rush, either!
@Stitches
Will shove post so you don't have to double post
Thanks Capn, I was considering pestering Dino to post it but like I said, he's still busy until tomorrow(?) so I thought I'd go and pester you lot instead.