I'll survive. Somehow I always do.

— Reilly to Odysseus

Reilly Aengus Cauldwell (b. 25 January) is an Irish half-blood wizard and Banshee half-breed of the Cauldwell family, the eldest son of Aengus and Ailbe Cauldwell (née O'Connor). He is also the elder brother of three Squibs: Conor, Benjamin and Finlay. His family were renowned for their running of one of the wizarding world's largest Wiz-O-Farms, growing magical crops and raising livestock for the benefit of different companies; they were also known, far more discreetly, for their predilection for what many assumed to be the art of Divination.

Upon attending Hogwarts School of Witchcraft and Wizardry, Reilly was Sorted into Hufflepuff House, where he quickly became best friends with Odysseus Leander and later Matthew MacDougal.


Early life

"So, my great-aunt Alanna's always going on, has been since I was young, saying we're a special kind, ancestors blessed with a gift or something like that... I know, she's mad as a box of frogs, and I'm just sitting here thinking, why has no one put this woman in St Oswald's yet, you know?"
—Reilly on the Cauldwell family pride
Reilly Aengus Cauldwell was born on the 25th February to Aengus and Ailbe Cauldwell into the village of Blarney, County Cork, Ireland. As a female Cauldwell had not been born into nor expected in the family for generations, his parents had already anticipated his gender, planned out his full name and decorated his room.
  • pastoral background
  • helped from young age, hard-working as a result

Hogwarts years

First year

Second year

Third year

Fourth year

Fifth year

Sixth year

Seventh year

Later life

Physical description

{{{1}}}: "Does that boy ever get any rest?"
{{{3}}}: "He looks like he's on death's doorstep."
— {{{6}}}
Reilly inherited the typical Cauldwell family traits: fiery red hair, hazel eyes and a freckled complexion. 
  • tall
  • looks v tired always
  • ear pierced
  • missing finger

Personality and traits

"Your compassion is a gift, Reilly."
Lattice Leander on Reilly's unusually empathetic nature

Magical abilities and skills

  • Herbology:
  • Charisma:
  • Care of Magical Creatures:
  • Wandlore:
  • History of Magic:
  • Leadership skills:

Banshee abilities






Lily Leander


Odysseus Leander

Cauldwell family

Matthew MacDougal


Reilly is an Irish name meaning "courageous, valiant". It is often used as a surname, with its other forms including O'Reilly and Riley, and it is derived from the Gaelic Ó Raghallaigh Sept that was based in Counties Cavan and Westmeath.

Aengus is a masculine given name in Irish. It is composed of the Celtic elements that ultimately amount to mean "one vigor". It is the Irish form of the Scottish Gaelic Aonghas, Aonghus. In Irish mythology, Aengus is a member of the Tuatha Dé Danann and a god of love, youth and poetic inspiration. He is traditionally described as having singing birds circling his head.

The surname Cauldwell is of Anglo-Saxon origin, and is a locational surname deriving from any one of the places called "Caldwell" in North Yorkshire and Warwickshire. It means "the cold spring, or stream".


Reilly: Football! Is that the sport where the Muggles kick that beach ball through a fiery hoop?

Odysseus: You really are something else.
Reilly: Honestly, sometimes I'd settle for just ordinary.

Reilly: I just wish the world was twice as big and half of it was still unexplored.

Reilly: It feels like it doesn't matter as much anymore.
Inny: So don't let it. Quit. Move on. Problem solved. Ta-da.
Reilly: Some things could matter again.
Inny: Seems unrealistic to me.
Reilly: I think you're lying to yourself. But... I'm sorry about your dad. You lost him, too.

Inny: If you so much as hurt one hair on his irritating ginger head—
Reilly: That was so nice. Why did you have to ruin it by calling me irritating?

Inny: Where are the girls?
Reilly: They went out.
Inny: They're grounded.
Reilly: Are they not meant to be let out when they're grounded?

Wizard: Mr. Cauldwell, your daughter is one of the most beautiful girls I've ever seen.
Reilly: She's alright.


  • Reilly's theme song was Prey by The Neighbourhood.