Roshon Fegan has appeared in pretty much all of your Disney Channel faves, from Shake It Up to Camp Rock and Mostly Ghostly. But did you know that he guest-starred on the first season of Kickin' It?! The actor turns 24 years old today, and we can hardly believe it.

However, he's not the only actor to appear on the classic Disney XD show. A bunch of your favorite celebs have also done guest stints on the series before they were famous — and we bet you totally forgot they played characters on the show.

Click through to see more celebrities who have starred on the show, and let us know which one shocked you the most in the comments!

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