I've been waffling over a design for a Dragonborn for ages, and I've finally come to one I really like. She's a blood mage, a Bhaalspawn and supposed to literally be made of Bhaal's blood, so red, red and more red is perfect, right? Also, I don't think I could've come across a better name for her. The Androktasiai are the Greek personifications of manslaughter.
And, for an added bit of fun, I used mods and made The Dream Guardian look rather like default Durge, with horns and a tail that look like the Slayer's. Although I know that The Dark Urge is a unique being, I somewhat like the headcanon I have that Rokta might have had an older brother at some point who himself was a Dragonborn Bhaalspawn. Perhaps, as it is the way of Bhaal's children, Rokta slew him to truly become Bhaal's Chosen.... Even though her memories are but fragments, his visage remains as but an echo, and that face comes back to visit her.