One of the most talented actresses in Calvard's film industry. When it comes to her work, Judith always makes sure to maintain an uncompromising sense of professionalism. That being said, she's actually quite friendly—as is evidenced by her large fan following. Unfortunately, her amicable nature combined with her sense of confidence can make her come across as a bit of a dimwit at times. Judith also possesses a secret identity: that of the Phantom Thief Grimcat, who is often believed to be an urban legend. When moonlighting as Grimcat, she follows her strong sense of justice, which inevitably leads to her saving the oppressed by taking down their oppressors. After encountering Van and the others on a variety of occasions—both as an actress AND her alter-ego—the Arkride Solutions team eventually came to learn her secret. It was only then that she began cooperating with them—albeit unintentionally. Apparently, her power to transform into Grimcat, and the mission she inherited with it, were handed down to her from her mother and grandmother. However, it is currently unclear as to how that process works.