When Tom Hanks's unexpected appearance on a Univision weather report became a viral sensation yesterday, it only confirmed something that Vulture has long been aware of: Celebrities love crashing weather forecasts! We're not exactly sure why ... maybe they're naturally conditioned to perform in front of a green screen? Maybe Bill Murray's weatherman character in Groundhog Day is more of a cultural touchstone for comic actors than we'd thought? Whatever the case, as this slideshow will prove, Hanks was far from the first actor to interrupt a clear skies forecast, and he surely won't be the last. Steve? Gerard? Triumph? Over to you!