Main Characters:
* Bellatrix Lestrange: Arguably the most prominent dark-haired female character, Bellatrix is a fierce and dangerous Death Eater.
* Hermione Granger: While her hair is described as "bushy" and "brown," it's often depicted as a dark shade. She's the most prominent and important female character in the series.
* Narcisa Malfoy: Draco's mother, Narcisa, has dark hair that becomes "streaked with grey" as the series progresses.
* Nymphadora Tonks: A skilled Auror and member of the Order of the Phoenix, Tonks has dark hair that she can change at will.
Supporting Characters:
* Molly Weasley: The matriarch of the Weasley family, Molly has dark hair that is often described as "reddish brown."
* Luna Lovegood: While Luna's hair is often described as "blonde," it's sometimes depicted as having a light brown hue.
* Lavender Brown: A Gryffindor student who briefly dates Ron, Lavender has dark hair.
* Petunia Dursley: Harry's aunt, Petunia, has dark hair and is generally a mean and unpleasant character.
* Minerva McGonagall: The head of Gryffindor House, McGonagall has dark hair and is known for her strict but fair demeanor.
It's important to remember that hair color descriptions can vary in the books. While these characters are generally considered to have dark hair, there are some instances where their hair color is described differently.