Yes, Jack Skellington makes a very brief, blink-and-you'll-miss-it cameo in the 1988 film Beetlejuice. He appears during the climax of the movie when Beetlejuice emerges from the model town wearing a bizarre carnival-themed "test your strength" hat. On top of this carousel-like hat sits a tiny, winged version of Jack's skeletal head. This appearance is particularly special because it occurred five years before The Nightmare Before Christmas was released in 1993, proving that Tim Burton had the character's design in mind long before Jack became a household name. This kind of "character foreshadowing" is a hallmark of Burton’s work; he often reused sketches and concepts across different projects. In the context of 2026's recent nostalgia for the franchise following the release of the Beetlejuice sequel, this original cameo remains a favorite trivia point for fans who enjoy tracking the "Burton-verse" connections, marking the official cinematic debut of the future Pumpkin King in a movie that didn't even feature him as a character.