Forums » Fantasy Roleplay » Writing a book need help on a few characters

So I'm writing a book for personal uses not comercial and I have a few side characters who need fleshing out please help with every response I get I'll be mixing and matching to make a character appealing to me. So without further ado.

Ellara Sunshadow: Named as such because even the sun dare not touch her due to all the blood she has spilt.
A merciless vampire commander, she is three thousand years old with a penchant for leaving behind a single survivor when she fights her battles to tell of what she did. She kind of helps the protagonist for her own ends and there are a few scenes when she mentions her past. (that's all I have on her I'm hoping for someone to come up with some ideas on her past maybe some redeemable features and her appearance also a reason why she can go out in the sun.)

??? : Crazy sun elf researcher who the protagonists go to for information on the long dead race that the main protagonist is apart of called nephilim. He lives in a small cottage and is crazy in the fact that he hears voices. (I'm looking for the same as ellara past, reason for craziness and voices also appearance.

Those are the only side characters I thought of so far I may make more posts with different and will put the final result on my profile as fully fleshed characters also if you want some more info pm me and i'll be more than happy to give it.

i made David Scallo recently. Would he work well? just came up with him in an hour.