Casper's First Christmas (1979)

In a holiday adventure, Yogi Bear, Boo Boo, Huckleberry Hound, and a host of beloved Hanna-Barbera characters find themselves lost during Christmas. Opting to celebrate the festive season, they embark on a visit to Casper, the friendly ghost. However, their plans take an unexpected turn when they cross paths with a not-so-friendly ghost, leading to a spirited and comical escapade filled with twists and turns.