|Portrayed by||Nancy McCrumb|
|First appearance||Root and Branch, Part 1|
|Known ability||Lung adaptation|
|Date of birth||January 25, 1978|
|Place of birth||St. Louis, MO|
|Date of death||After March 20, 2007|
|Occupation||Agent of the Company|
|Significant other||Gael Cruz (deceased)|
Bianca Karina was an agent of The Company and was engaged to fellow agent Gael Cruz. Bianca was described as one of the best agents in Bob Bishop's disposal, but nonetheless was killed by Sylar. Bianca was an evolved human with the ability to breathe in any environment.
Outside the Nat & Noo Hotel in Australia, Bianca Karina and Devin Patterson prepare to participate in a coordinated bag and tag. They enter upon receiving word to proceed from "Julien", and spot their target behind the bar as he begins to flee. As Devin gives chase, Bianca thrusts her legs over the bar and knocks the target out with a swift kick.
Bianca explores Wannsee Lake using her ability to breathe anywhere. She later goes to dinner with her fiancé Gael Cruz, who tells her that there may be a mole in the Company who has a special ability. Bianca realizes that he is under orders to monitor her. Angered, she leaves to join Devin on his stakeout for the German.
Devin and Bianca leave their van, after staking out the German's apartment building up until an hour after they expected the German to show. They enter the building and find that the German has been tipped off and entered his apartment through the back. They also find a photo of Gael on the German's desk with an empty automatic pistol holder. After Bianca notes that the German's information includes where Gael is staying, they rush to get to him.
They use the same van they used for the stakeout, and Bianca asks Gael to drive fast as she tries fruitlessly to reach Gael on his cellphone.
They arrive at the hotel where Gael is resting just in time to witness the German shooting Gael in the stomach. Devin then distracts the German by shooting at him, allowing Bianca to free Gael. After the German kills Devin, Bianca uses a gas cannister to partially blind and suffocate the German. Since Bianca is immune to the gas's effects, she is able to use the distraction to knock the German out, capturing him alive.
After the unsuccessful Berlin mission, Gael comes to the conclusion that someone is trying to bring down the Company from the inside. Bianca suggests that they start their investigation by checking everyone's phone records. An hour later, she accompanies Gael to confront Donna Dunlap about her phone being located in the bushes outside the facility. As Gael interrogates Donna, Bianca defends her and chastises Gael for his outrageous behavior. As the argument escalates and lines are drawn, Bianca sides with the evolved human agents against the human agents.
Later on, when Gael comes to, Bianca tells him that he is staying there until he's calmed down and grants him a phone call when he asks for it.
Bianca and Gael are in a car escorting Sabine, Julien, and "the package". When Eric Thompson contacts Bianca asking for backup on the bridge, Gael orders her to ignore Thompson. Later, when a group of Julien clones ambushes them, Gael orders Bianca to kill Julien, instantaneously killing all the clones.
Karina and Gael are sent to subdue Sylar after he steals Claire Bennet's ability. Bianca shoots Sylar, but Sylar recovers and telekinetically throws his assailant onto her car, killing her and her partner. Bob later mentions that Karina was one of the Company's best agents.
Bianca pursues Sylar to Costa Verde. En route, Bianca worries that her power will be stolen by him, and she asks Gael to make sure this doesn't happen. When the engaged couple tries to apprehend Sylar, their tasers and gunfire are no match for Sylar's telekinesis and ability to heal. Gael tells Sylar that he is the evolved human agent, and Sylar snaps Bianca's neck. When Gael is killed too, the lovers die together hand-in-hand.
The case file also includes a psychological profile:
According to her assignment tracker file at primatechpaper.com, Bianca's control index is 80%. Her data analysis shows her biological level at 85, cerebral at 25, elemental at 65, and temporal/spatial at 40.
Please refer to Theory:Bianca Karina for fan-created theories and other speculation.