Man, this is tough. Let's be honest. If we have a character with in-depth background, they would have multiple songs describing them as they go through high and low points in their life.
MAIN THEME however...
... That's a toughy.
Since I have so many in game characters, I'll just go with Role playing characters that I use on the forums. Since I can't narrow it down to one.. I'll put the main song first, and any sub themes thereafter.. As well as reasons. Enjoy.
Dabiene Caristiana:
Second Chance - Shinedown -
- Coming from an aristocratic family that was snobbish, abusive and neglectful she did not want to become them or a politician. Rather preferring to work on the arcane arts as well as finding herself. Nevertheless, although things ended very badly between her and her parents, she wishes them the best.
Stand My Ground - Within Temptation -
- She has her demons to face such as lycanthropy, or the beast. As well as her past. However she will constantly "stand her ground", knowing it is pointless to run. This also including standing her ground and defending friends and loved ones.
Severus Alucard:
My Demons - Starset -
- He has done a lot of bad stuff in his life in retaliation on what happened to his friends, family, and his village. And now he has to live with them.
Pull Me Under - Dream Theater -
- He has accepted whatever fate faces him as well as his actions, for better or worse, and is no longer afraid. This happens later in his life.
Soldin Snowknight:
Son of Man - Phil Collins -
- Although his parents are not at his side, they urged him to keep an open mind and help those in need. And go on an eventful journey through life and "walk tall with pride".
Erebus and Isabella Cacciatore:
I'll Be There For You - The Rembrandts -
- Honestly I can't much think of one since they're kind of new. But.. Yeah. They're siblings, they are also TWINS, and will look out for each other. Best of friends. And sometimes worst enemies. Sibling love, gotta love it.