Secrets are what split our family apart in the first place. Do you honestly believe any more of them are going to keep us together?

— Atria to Albus

Atria Jacqueline Hilliard (b. 30 January) is a half-blood witch and Banshee half-breed of the Hilliard and Cauldwell families, the product of an affair between Noah and Ember Hilliard (née Cauldwell). She is also the maternal half-sister of Albus — though this was knowledge that went unbeknownst to them for many years — and by extension the adoptive sister of Musidora. As her parents had been in different relationships at the time of her birth, Atria was given to Noah, who raised her alongside his later wife Mara.

Atria attended Hogwarts School of Witchcraft and Wizardry where she was Sorted into Gryffindor House like her mother.


Early life

Hogwarts years

First year

Second year

Third year

Fourth year

Fifth year

"Join the Debate Club! New members always welcome! Meetings in the Charms Classroom at—"
—Atria takes charge at the Yule Ball

Sixth year

Seventh year

Later life

Physical description

Personality and traits

  • darker version of ember
  • terrible relationship with her stepmother
  • as her father is head of the investigation department, she takes after him, always wanting to find out the truth
  • perfectionist, overachiever
  • dark humour
  • the whole family problems/banshee issues make her go a bit loopy
  • vain
  • gryffindor traits

Magical abilities and skills

  • Divination:
  • Expert detective skills: Both as a naturally inquisitive girl and the daughter of the Head of the Investigation Department, Atria was known to be a formidably talented investigator. While in school, she and her brother had a knack for solving difficult mysteries and discovering the truth despite all attempts by others to conceal it. 
  • Leadership skills

Banshee abilities





Albus Cauldwell

"Believe it or not, I actually wish you weren't going to leave. Because, Albus, you're one spectacular wizard, and no matter what you are still my little brother."
—Atria says goodbye to Albus

Lucien Coquellin

Albus Cauldwell: "Despite everything, Atria, there's no one I would trust more with my son's life. Be happy."
Atria: "He'll be happy too. Nothing will get in the way of that. I promise you."
— Atria's vow to care for Lucien

Mara Rountree

Never truly accepting her as her daughter, Mara was distant with Atria as she was growing up, treating her as a burden and symbol of Noah's infidelity.


Atria is a celestial female given star name, deriving from the star in the constellation Triangulum Australe. The plural form may also refer to an atrium, a large open space within a building, or the atrium, an anatomical structure through which blood enters the heart.

Jacqueline comes from French, as the feminine form of Jacques (English James). Jacques originated from Jacob which is derived from the Hebrew meaning "may God protect".

Hilliard comes from the Norman names "Hildiarde", and "Hildegard," composed of Germanic elements that mean "strife", "battle", "fortress" and "stronghold". The surname has been in Ireland since the 17th century.


Claudia: You're balancing classes, O.W.Ls, clubs, your own club, a social life and being a prefect. How is it you're even still breathing?
Atria: You know me. I like to stay busy.

Atria: Why enjoy today when you could be worrying about tomorrow?

Atria: Your hands.
Henry: Uh, they're on your waist.
Atria: Exactly. Do I look like a nun? Put them somewhere more useful.

Atria: If I ran Slug Club and knew that Richard Kirkley's mother was working as a barmaid at the Hog's Head, I never would've invited him. It's off-brand and spreads a false message of acceptance.

Atria: You catatonic, galloping gorgons didn't even vote! Since you're both too dim to exercise your own rights, and you both have the combined vocabulary of a stuttering satsuma, consider this your final debate as a Holy Hedwig and your final week as my personal acquaintance. You're out. That is all. Shoo!

Albus: So Leo's bisexual now?
Atria: Of course. He turned all the paperwork in last week and his acceptance letter only just came in this morning. It was all very sudden.

Atria: I only drink the blood of my enemies, and the occasional pumpkin juice.

Atria: Don't worry, little one. Everyone's scared of something.
Musidora: Even you, Atria?
Atria: No.

Atria: Hands off, ghoul!

Atria: Just my witches' intuition, but Musidora doesn't seem like the type to try and hurt anyone.
Albus: Your witches' intuition?
Atria: Every witch has one, you know.

Noah: There it is. Like clockwork.
Atria: Excuse me?
Noah: Devastation. You're sad a case is over.
Atria: That's ridiculous. I'm happy that everything worked out just fine.
Noah: You're only happy when there's trouble. I know that for sure.

Mara: Atria Jacqueline Hilliard! What have you done?
Atria: Isn't it obvious, Mara? I saved Christmas. Look how happy everyone is.
Mara: You spoiled, wretched little brat. How on earth do you expect to pay for all of this?
Atria: Well, I was thinking... perhaps you could apply to Hogwarts for a teaching position, since you love watching over me so much? Of course, Sentiatla would likely ask what skills you have, and you'd be forced to admit that the only one you have is being a terrible mother... so I suppose you'll just have to get creative this New Year!

Atria: If it's locked, it must be important.

Albus: So, what about you?
Atria: Um... I wouldn't go back to that person I was before. All I cared about was winning. But life is bigger than that. And now I just want to be happy.

Ember: Atria, sweetheart, I feel it's my duty as your professor and your mother to remind you of one thing... try not to embarrass me.
Atria: You should have thought about that before wearing those shoes. Love you.
Ember: Love you too.

Claudia: Are you really putting on lipstick just for this?
Atria: This, my lovely Cleo, is war paint.

Atria: Oh, this is just my list of inspirational women.
Albus: It's just your name.
Atria: Yes, I am big enough to admit that I am often inspired by myself.


  • Atria's theme song was Liability by Lorde.