Judith is a anthropomorphic brown llama with a black top tight long sleeved shirt and a light blue tall skirt and red framed glasses. She also wears high-heeled boots.
Judith is shown to be very serious about her work and upholding her duties to the bank she works for, although her mission to claim payments from the Moon Theater and shut it down is antagonistic to the goals of Buster Moon and his friends. She does not seem to hold any personal resentment towards them or the theater, however, as she happily attends its grand reopening.
Judith works for the bank to which Buster owes a large amount of money. She calls the theater to speak with Buster, but his constant avoidance leads her to arrive in person. Judith threatens him to pay his debts by the end of the month, or the bank would repossess the theater property.
After the theater is destroyed, she is seen setting up a sign declaring the address where it stood as bank property.
When Buster and his performers stage a concert in the theater ruins, Judith interrupts Ash's performance and declares that Buster, his friends, and the audience were trespassing on bank property, demanding that they leave. Ash refuses to oblige; Judith angrily threatens to call the police, but the audience, riled up by Ash, makes it difficult for her to leave, and she's ultimately pierced by some of Ash's quills.
Judith later accepts Nana Noodleman's purchase of the property, and attends the grand reopening of the Moon Theater.
“Mr. Moon, none of your shows have ever worked. None of them! You've had your chances. Now settle your accounts or we will repossess this property!”