It's a strange sensation to see a character from a different franchise pop up in a TV show or movie. Like a college friend dropping by your high school reunion; it's not unwanted, but it's definitely weird
Some appearances are more subtle than others. But I'll never complain about a Ghostbuster dropping by unexpectedly, even if they look right down the camera and wink directly at me.
Here are a few times your favorite characters popped up where you least expected them: