She failed the first round when she could not keep quiet in Hex's library, hissing at a dog. In The Most Dangerous Game Show, Nyancy was one of many contestants trying to win Ben's hand in marriage on Charles Zenith's game show. After a confrontation with Looma and Attea, she again tried to take control of Ben, but Rook arrested her. A series of events led to Chan hypnotizing Rath and using him in various heists. When Rook and Ben noticed this, they ran after the animals. In Catfight, Nyancy Chan robbed people in the cinema with cats. Nyancy made a cameo in Special Delivery, as one of the patrons at Psyphon's Undertown auction. Blonko pretended to be at her service, then handcuffed her and handed her over to the Plumbers. She later tried unsuccessfully to take over Rook, because she thought the alien was a cat. In Tummy Trouble, Nyancy captured Ben and Rook using controlled tigers. Nyancy is very obsessed with felines, sometimes even acting like them, such as meowing and purring like a cat, specially while talking to and controlling them.
When Nyancy activates her powers, her pupils become slitted like a cat's. She also wears glasses, sports a white and light purple dress with pink tights, light purple sneakers, a cat bell on her neck, and cat paw-like gloves. Nyancy is an Asian girl with black-purple hair in the style of a long ponytail with a pink bow on her head that resembles cat ears, and four purple lines on her face that resemble whiskers.
