Judy is a supporting character known primarily as the co-host of the televised bounty hunting program Big Shot alongside her partner, Punch. The program provides information on wanted criminals throughout the solar system and serves as an occasional source of exposition for the events of the series. Judy is presented as a young woman with blonde hair who wears a distinctive powder-blue bolero-style jacket that is left open, leaving her midriff and the upper part of her chest exposed. This attire is a deliberate part of her on-screen persona, functioning as visual appeal to maintain viewer attention.

Her personality on Big Shot is bubbly, energetic, and somewhat ditzy, embodying the archetype of the stereotypical blonde. She reacts to the bounty information, often with silly or exaggerated responses to the dramatic statements made by Punch. Her primary function on the show is to act as a spectator and sidekick, asking Punch questions, affirming his points with exclamations, and apologizing to viewers when a bounty target is revealed to be deceased or otherwise unreachable. In one instance, she begins to read a lengthy essay from a criminal known as Teddy Bomber but is cut off before finishing. Despite her prominence on screen, the crew of the spaceship Bebop often pays little attention to the program, using it more as background noise or becoming frustrated when it broadcasts news that undermines their recent efforts.

The dynamic between Judy and Punch is central to Big Shot. They affect an exaggerated cowboy theme for their broadcast, and their on-screen relationship is one of a manic co-host duo. However, the true nature of their partnership is revealed near the end of the series when the show is canceled due to low ratings. In this moment, Judy drops her cheerful television persona entirely, revealing a sharp, lower-pitched voice and a genuinely angry reaction as she threatens to have her agent contact the network about the cancellation. This moment demonstrates that her on-screen character is a crafted performance, and her true personality is considerably more grounded and assertive.

Following the cancellation of Big Shot, Judy's fate is briefly mentioned. She becomes engaged to her agent, and this information is relayed by Punch in one of his final appearances. Her role in the story is strictly limited to that of a television presenter who provides narrative context for the main characters, and she does not interact with them directly. She has no notable combat skills or special abilities beyond her talent for performing as a co-host.