love it

Rook - http://www.youtube.com/watch?v=rrBx6mAWYPU

The commodores - Brick House

Demon Assassin

ACDC - If you want blood

QoT

Santana - Black Magic Woman

Regulus

ACDC - Shoot to Thrill

Aerosmith - Angel

The Torchbearer

Def Leppard - Pyromania

Def Leppard - Coming under fire

Lord Erebus

Jimi Hendrix - Purple haze

Regulus

A Flock of Seagulls -- I Ran (So Far Away)

Ok the the lyrics to the song Hell by disturbed fit Torch Bearers Backstory almost perfectly

Burning now I bring you hell
Oh, burning now I bring you hell

Leave me tonight, when the warnings said leave a shudder upon you
Running from all that you've feared in your life
Soul of the night, will a son mislead paint a horror upon you
Marking the moment, displaying in my ghost of a life
That I can't condone the way you left me out in the open
To leave me to die
So how can I, forget the way you led me through the path into heaven
To leave me behind

Now I can't stay behind
Save me, from wreaking my vengeance upon you
Too Killing more than I can tell
Burning now I bring you hell
Oh, burning now I bring you hell

Torchbearer has to be "Her Ghost in the Fog" by Cradle of Filth.

Erebus strikes me as "Bloody Pleasures" by Blutengel.

Regulus reminds me of "Joy to the world" by Combichrist. "I can do anything I want to you people at any time I want, because that's what you've done to me!"

Oak is VNV Nation's "Honour", without a doubt.

Unclean Beast makes me think of "The Last Firstborn" by Celldweller.

Rook would be "Born Too Slow" by Crystal Method. So very very much too slow.

Queen of Thorns is "Terror", by My Ruin.

All I can come up with for Sedna is "Just Like you Imagined" by NiN. Yes, an instrumental. She has so little personality.

Demon Assassin brings "You Spin me Right Round" by Dope to mind.

Occulus' backstory screams "Love the Giver" by Claire Voyant.

Mostly based on backstory, with obvious exceptions.

Man...the selections here suck

There is only one song for Regulus ^^

Megadeth - 

Killing Is My Business... and Business Is Good!

"I am a sniper always hit the mark
Paid assassin working after dark
Looking through the night using infra-red
My target's on you aimed at your head"

http://www.youtube.com/watch?v=WsaoU6MT1Ts

And this one is the only song I can think of for Rook:

Meshuggah - Lethargica

http://www.youtube.com/watch?v=1EHLjxZ4AIs

"The void clenches its determined jaws
A lethargic, careless motion to kill
Monstrous, prodigious, indifferent
Slow and deliberate its torturous skills

Its molars grind and shatter
Onerous, leaden bringers of hurt
Unhurried in its deadly intent
The undoer of all - dense and inert

Its design perfected through aeons
Pure, immaculate, clean, omnicidal god/machine"

I can't think of any others that fit as well as those two