Larry David on Hannah Montana
Probably the last place you’d ever expect to see “Seinfeld” creator Larry David is hanging out with the still-innocent tween idol Miley Cyrus on the set of her show “Hannah Montana.” You can thank David’s young daughters, who were huge fans of the pop star’s show, for this bizarre cameo in which the funnyman plays himself.
Nicole "Snooki" Polizzi on Supernatural
An MTV staple, you may be used to seeing Snooki all over your TV either running around the Jersey shore in drunken exuberance or, more currently, navigating motherhood. But viewers were thrown off to see the “guidette” appear in the sci-fi drama playing a demon version of herself.
Paris Hilton on Supernatural
Another bizarre cameo from “Supernatural,” Ms. Hilton played a one-episode villain. Paris portrayed a shape-shifting god obsessed with being worshipped — maybe that’s not such a stretch for the attention-seeking celebrity.