Holly Jollimore is a fictional character from Casper's Haunted Christmas. A girl that, despite her parents' entusiasm, doesn't like Christmas, she has a central role in the aforementioned film.
Holly lives with her parents, Carol and Noel Jollimore in the town of Kriss, Massachusetts, the most Christmasy town in the US. She is overwhelmed by her parents love for the holiday, though she loves them dearly, even defended them when fake Casper insulted them.
When she first meets Casper she believes he is the snowman she just built because he landed on the one she just built, after Casper and the ghostly trio were sent by Kibosh into the town of Kriss because Casper didn't scare anyone and until they did, the trio had their haunting licenses suspended and were banished to the town until Casper scared someone, but if he didn't scare by a certain time him and the trio would be banished into eternal darkness.
Holly and Casper quickly become good friends, with Holly still believing that he is the snowman she built. Casper did not tell her he was a ghost because he did not want her to get scared and no longer want to be his friend, but the lie ate him up inside. Due to the fact that Casper couldn't scare, the ghostly trio brought spooky to impersonate Casper to scare people, but he was unable to scare and resorted to being mean, while pretending to be Casper he ran into Holly and insulted her and her family which caused her to be grumpy at Casper, resulting in tearing his Christmas card she was making in the real Casper's face. Holly is depressed by Casper's sudden aggression and holes herself up in her room, when her parents enter the room, they encourage her to give Casper another chance, which she does.