Nickelodeon viewers know that series like Zoey 101, SpongeBob SquarePants, Henry Danger, Sam & Cat, iCarlyKnight SquadThe Thundermans, All That, Ned’s Declassified School Survival Guide, Nicky, Ricky, Dicky & Dawn and more have become some of the most iconic throwback shows ever. They were a huge part of so many peoples’ childhood and still bring on so much nostalgia today.

As it turns out, there are actually a bunch of seriously shocking behind-the-scenes secrets straight from the sets of your favorite Nickelodeon shows. From two series using the same set to characters that were originally supposed to only be on one episode and even little Easter eggs hidden within some shows, so much went on that fans never knew about. Thankfully, some of the former cast members have spilled some major tea over the years!

Scroll through our gallery to uncover 30 behind-the-scenes secrets you never knew about Nickelodeon shows, and prepare to have your mind blown!

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