Okay I'm curious, what's the reasoning behind specifically wanting the first two to be straight and the last to be bi? I have to be misreading this because it seems like you're equating bisexual with bad boy 
I honestly have yet to see a BioWare character whose straightness really added to their characterization, although I can certainly see how those favoring 2/2/2 instead of all bi do so for reasons of believability, but why specifically want a LI to be straight? (At least if you wanted them to be gay there could be a reason there, like somehow you wanted Thedas homophobia to play into their story line, a.k.a. Dorian)
No, I was writing and that was the last thing on my mind. I went back and changed it, didn't you notice how I didn't say the apostates sexsulity? They could've been gay/bi and I made the gender and history totally unambiguous. And yes, the GW being a rogue GW was becuase we have a warrior and Mage GW already, so we need a rogue one. I wasn't thinking about sexualities when I wrote it, to be honest. I like the idea of an anti Isabela Riviani. It sounds awesome. The Rogue GW is a not very nice looking man, with a scared face and he's an older gentlemen in his mid thirties , and he's also like Robin Hood besides he got caught and was consriped into the GW.
The Dark Knight Xaver Williamson was the second son to a lord in Orlias, as a young man, he was happy and studious, but with a darker edge. He was cunning under that mask, which made him a deadly foe to his older brother. When their father died when he was 19 years old, he was exiled from their village. But luck found him in the next village when he was drinking beer in the next village. In the form of a young, handsome man. He was attracted to the man, and eventually they became lovers. Things went bad when his brother heard about his existence in the next village and soon after, his lover died to save him. Soon after, he went into a sort of a stupor, refusing to talk to anyone and then making his way out of the village, he left Orlias to find his own path. When a young woman living a solitary existence was found by him, he realizes that he attracted to the woman, and began slowly putting his heart back together when he realized his second lover was dying of a disease that not even healers could fix. She died a year later, in her mid twenties. By this point, Xavier stopped carrying, and went to Tevinter, more as a get away from everything then anything else. He is found by your first companion, a young Mage Gracylnn Rivers, in a bar, his face covered in a brown hoodie. When the man took off his hoodie, he had stunning green eyes and short, milatary cut chocolate brown colored brown hair. He is a Dark Knight, so he's willing whatever he needs to do to kill his brother... Whatever the price may be. He's also a bit of a dick, keep in mind he suffered greatly, so he'll try betray you and not even care. He is actually a morally bad person, and broken to the point where it's very hard to get approval from him. Yes, I want a Dick LI that's a warrior. I was thinking of his relations with the rest of the crew, and I image he'll be attracts to William Smith (the archer) who doesn't exactly take well to him. He'll also be flirty with Mrs Graclyn, who denies him. But the other guy (Orion or Stormhunter) who is gay, whom he'll also be attracted to, will probaly end up having an affair of both angrier and being attracted too, but it'll be like Isabela/Fenris type things, whilest the apostate Wizard will be from the Free Marches, he'll be a blind Mage that is about in his twenties, and he'll use his magic to feel his way around. And he'll be non romancable, but he'll still be flirted with (even though Xaveir still has some common sense... Apperately). The Apostate will think it's a joke and continue on. The next Mage will be a humor packed Apostate as well, as a rogue Saarabas, she is done with games and hates the Qun with burning hatred. She is a female only romance. And he'll leave her be when she throws him against a wall with stone punch. So there, I'm finished!!! Yay! It took my hours to finish it. My Dark Knight is suppose to be the exact opposite of Cullen and Alistair (he's no goodie two shoes chantry boy like they are... No offense, I love them! He's like them if they decided to go dark and flirt with everyone. )