Ursula emerged from an orphanage background, initially marked by troublesome behavior, before Dr. Z adopted her. This adoption brought her into the Alpha Gang alongside Zander and Ed, where she led the Alpha Trio subgroup.

Introduced as an antagonist, she pursued the gang's goal of collecting dinosaur cards for world domination under Dr. Z's command. Ursula's personality blends comedic flair with pronounced self-absorption; she frequently boasts about her beauty and shifts blame to subordinates during setbacks. A defining characteristic is her explosive reaction to being called an "old lady," triggered regardless of proximity.

Visually, Ursula is defined by long green hair spiraling into twirls and a signature purple jumpsuit featuring a diamond-shaped midriff cutout. Earlier arcade depictions showed variations, including black pants with a shirt or a tight dark-red pink dress and coordinating accessories.

A dramatic shift occurred when the Alpha Gang abandoned villainy after Seth's betrayal. Ursula embraced this transition, cooperating with former enemies. She aided in freeing brainwashed dinosaurs and allied with the D-Team against the Spectral Space Pirates, participating in battles like defeating the Black Pterosaur and confronting the pirates.

Key relationships shape her story: Dr. Z serves as both adoptive father and gang leader; Zoe Drake engages her in a rivalry punctuated by age-related insults; and Dr. Owen harbors unreciprocated romantic feelings, culminating in a rejected marriage proposal. Documented heroic actions include surrendering the Iguanodon card to the D-Team and assisting in liberating mentally controlled dinosaurs.