Judy was first seen with her younger brother, Peter while moving into Alan's empty house with their Aunt Nora following the loss of her parents. She and Peter discover "Jumanji" in the attic and decides to play it. She and Peter see Mosquitoes in the attic and Monkeys in the kitchen. She meets Alan Parrish after she and Peter release Alan and a lion out of the game. She and Peter allowed Sarah Whittle to continue playing the game as vines appear, including, Van Pelt. She, Peter and Sarah battled Van Pelt before Alan arrives after Peter transforms into a monkey while trying to cheat while Alan is being taken away by a police officer (his old friend from his dad's shoe factory). She was attacked by a poisonous barb and Peter saves her. By the end of the film, she is seen with her parents and Peter meeting Alan and Sarah for the first time. Alan and Sarah convince Judy and Peter's parents to cancel their skiing holiday in Canada and start their work for the shoe factory, thus preventing their deaths in the previous timeline.
- Before Kirsten Dunst was cast, Scarlett Joansson originally auditioned for the role of Judy Shepherd.