The Crypt Keeper

The voice of the Crypt Keeper, John Kassir, didn’t have much to do for his cameo besides scream in an ode to another ‘90s classic, Home Alone. (Brock Winkless provided the puppetry work.) But this was probably the scariest part of the whole thing.
In case you were wondering, sure, Amy Brenneman (who played Kat’s dead mom) and Devon Sawa (Casper in human form) technically count as cameos, but they’re part of the actual plot. If you’d like, we can also count Fred Rogers—appearing in an in-film showing of Mr. Roger’s Neighborhood—and Hard Copy’s Terry Murphy, who took part in a fake news broadcast. Fun fact: Steven Spielberg filmed a bit for the mirror shifting sequence but it was left on the cutting room floor.
https://gizmodo.com/8-annoying-movie-ghosts-who-make-us-go-booooooooooo-1844676341
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