Bianca di Angelo

Bianca is the daughter of Hades and Maria di Angelo, and is the older sister of Nico di Angelo.

History
Not much is known about Bianca's past. She and Nico were born before World War II (she is around 85 in the Titan's Curse), so Hades never broke the oath he took after the war to never have any half-blood children again.

Bianca and Nico both lived in Washington, DC at some point. When Bianca was twelve and Nico was ten, both were brought to the Lotus Hotel and Casino by the Fury Alecto disguised as a lawyer. Hades had to erase their memories so they wouldn't know who they were.

After a 'month' in the Lotus Hotel and Casino, which was actually about 70 years, they were taken out by the same Fury. Hades wanted them because he wanted one of them to be the child in the prophecy. Her mother, Maria di Angelo, died when Zeus struck their apartment with lightning while trying to kill Nico and Bianca. The Oracle (of Delphi), showing up shortly after the destruction of their apartment, was cursed by Hades to never have her soul rest, and to stay in her body until it rots. He cursed her because she kept telling him that he should have given Bianca and Nico to Zeus as she knew their future.

The Titan's Curse
Bianca is first introduced in The Titan's Curse, as a Half-Blood of unknown parentage. After being rescued from the Manticore by Percy Jackson and Artemis, Bianca makes the decision to become a Hunter. She shows signs during the quest of being a child of Hades when she is able to slay some of the skeletal warriors easily when the others were unable to.

Bianca later joins a Quest, and she dies halfway through the adventure, killed by a malfunctioning robot, a prototype of Talos, on December 19th, 2007, three days before the Winter Solstice that year. At the end of the book, Nico discovers that Bianca and himself are the daughter and son of Hades.

The Battle of the Labyrinth
Percy finds out that Bianca was causing the dreams he had about Nico and the Ghost King Minos.

Later in the book, Bianca comes back as a ghost, through a sacrifice from Nico. She explains to Nico that her death wasn't Percy's fault and there was nothing he could have done to help,as she made the fatal decision herself. She also tells him he must forgive Percy, as holding grudges is the fatal flaw of a Hades child. This allows her brother to make amends with Percy and ensure he is on the gods' side for the war.

The Last Olympian
In The Last Olympian, she appears to her brother when he tries to summon their mother's spirit warning Nico not to summon her; explaining that she is the one ghost he is not allowed to summon and that she has been hidden by Hades due his grief over her death. Instead of summoning her Nico sees a memory from his early childhood where Maria was killed by Zeus in attempt to get at the children.

Personality
Bianca is quiet and shy, and loves her brother, but dislikes caring for him all the time, and was relieved to be able to be her own person when she joined the Hunters. She got along well with Percy, but he was angry with her when she joined the Hunters instead of coming to Camp, as this made him feel as if losing Annabeth had been for no reason at all and that she was also being selfish with Nico. He later forgives her, as she told him she joined the Hunters so she could live her own life and that she felt Camp Half Blood would be safe for Nico for she believes that there are a lot of people like Percy there.

Bianca is somewhat lacking in common sense, as it was her own fault Talos attacked them, because she didn't listen to the warning of Aphrodite. She is willing to make up for her own mistakes though, and died as a result.

Her father Hades mentioned that Bianca would have made a better child of the prophecy then Nico.

Like her father, both Bianca and Nico have a habit of gesturing with their hands while talking and when they are on edge.

Physical description
Bianca has light brown hair (unlike her brothers- Nico), and dark black eyes that remind Percy of her father Hades. She is lean, and about average height. She has olive skin, freckles across her nose, and wears a floppy green hat that hides her face. She gains the silvery aura all Hunters have after she pledges herself to Artemis, and doesn't hide behind her cap anymore, and she pulls her hair back into a braid like the other huntresses, with golden strands and glow.

Powers
Bianca doesn't show many demigod powers throughout the series. However like most half-bloods: As a Hunter of Artemis, she possesses: As a daughter of Hades, she has shown two powers:
 * She most likely posseses ADHD due to natural battle reflexes.
 * She may also possess dyslexia, due to her brain being hard-wired for ancient Greek.
 * Immortality, unless she dies in battle or falls in love.
 * She may also possess superhuman accuracy and hunting skills like running, jumping, stealth etc.
 * In The Titan's Curse, Bianca was shown to be able to kill undead skeletons.
 * In The Battle of the Labyrinth, she (as a ghost) was shown to have dominion over the dead as they parted before her when Nico summoned her.

Fatal Flaw
Bianca di Angelo's fatal flaw may be holding grudges. After her death, Bianca says that holding grudges is the demigods of Hades' fatal flaw. In the fifth book, Nico tells his father that he (Hades), is holding a grudge that could end up killing the Olympians and the campers. It may also be a strong bond with those she loves (Nico). This may be because she was killed because she picked up a metal figurine of Hades, the only mythomagic figure Nico didn't have, an act of misplaced sibling love. (She died by destroying the metal giant from The junkyard of gods.)

Film
Bianca is yet not cast, and presumably will not be until the film version of The Titan's Curse starts production.