Warner Bros.
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Who wouldn’t want to be in a movie with Mary-Kate Olsen and Ashley Olsen? Although some of these classics went straight to video, others were lucky enough to hit theaters. While you probably remember obsessing over the Olsen twins' memorable wardrobe selections or hairstyles, you might have forgotten about the celebrities who made surprising appearances in these films.

While Mary-Kate and Ashley remained the center of attention in these movies, their quirky parents, good-looking love interests, BFFs, and crazy foes were also recognizable in their own right. In fact, the appearance of these celebrities took these Olsen twins’ classics to a whole new level. Keep reading to find out which famous faces have appeared in Mary-Kate and Ashley Olsen movies. You won't regret it!