TV-Series
Description
Nurse Catherine is a pink anthropomorphic lizard with dark pink spots, purple eyeshadow, and pink irises. She wears a white nurse's gown, a white cap with a red cross, and a matching medical badge on her left arm. Her defining characteristic is an obsessive compulsion to draw blood using an oversized syringe she always carries. She experiences intense, near-orgasmic pleasure when successfully draining blood, vocalizing her satisfaction with phrases like "Ooh, that felt sooo good..." or announcing "Time for a blood test!" Her pursuit is predatory; she actively seeks excuses to target individuals, particularly human guests, and cannot resist puncturing flesh, even against protests or when hitting unintended targets.

She serves as a medical professional at the Gregory House hotel and its later affiliated hospital, initially under Dr. Fritz. Catherine abuses her position, subjecting Dr. Fritz to forced blood draws and mistreatment. Her patient care is contradictory, showing superficial concern while primarily using her role to facilitate blood collection. She operates a medical office stocked with syringes, imprisons patients like Cactus Gunman to prevent departure, and exhibits negligence, such as exposing a bloodless corpse to destructive elements. By the conclusion of "The Bloody Karte," she assumes leadership of the hospital after Dr. Fritz's incapacitation.

Catherine engages in recurring, intense but short-lived romantic pursuits, often intertwined with her blood obsession. Her infatuations with characters like Hell's Chef, Cactus Gunman, and Judgment Boy Gold end disastrously, typically harming the object of her affection. An attempt to embrace Haniwa Salaryman results in his accidental death. When Hell's Chef rejects her affection (expressed through preparing meals), she retaliates violently with her syringe. These failures highlight the conflict between her desire for companionship and her destructive impulses.

In the PlayStation 2 game *Soul Collector*, her mechanics reflect her traits. She flees upon encountering the player but becomes permanently hostile after her soul is stolen (requiring the player to drop a banana peel to make her slip and drop it). Once antagonized, she aggressively pursues the player, wielding her syringe in a "Horror Show" attack that drains health (represented as a mental gauge) and can incapacitate the player for extended periods if caught, emphasizing her speed, aggression, and threat through forced blood extraction.

No known history prior to her appearance at Gregory House exists. Her character development focuses solely on her established role and interactions, maintaining consistent core motivations—blood-drawing and romantic pursuits—without significant evolution. She appears across all franchise iterations (main series, *The Bloody Karte*, video games) with consistent core attributes.