Character from The Dresden Files by Jim Butcher
Nicodemus's daughter and fellow Denarian — her Fallen gave her hair that transforms into razor-sharp cutting tendrils, and her father gave her a death that proved love and evil can coexist in the same heart.
Deirdre spoke rarely and acted with brutal efficiency, the perfect instrument of her father's will. She had been raised from birth in Nicodemus's shadow, trained and shaped into both his most loyal soldier and his most terrible weapon. She loved her father with absolute devotion, and he loved her — which made what he did to her all the more monstrous. During the heist on Hades' vault, the gate required a sacrifice of genuine love. Nicodemus killed his own daughter to open the way, weeping as he did it. Deirdre went willingly, because she believed in his cause as deeply as he did. It was an act of mutual love expressed through murder, the most Denarian thing imaginable.
Dark-haired woman with sharp features that echo her father's. In her human form, she is striking if severe. When she draws on her Fallen Angel's power, her hair extends and hardens into dozens of metallic, razor-sharp tendrils that move with independent, serpentine will — each strand capable of cutting through steel. The transformation is one of the more visually horrifying Denarian manifestations, turning her head into a Medusa-like weapon platform.
Also known as: Deirdre, Deirdre Archleone