A lot of people grew up watching shows like Sam & CatBig Time RushTrue Jackson, VPUnfabulousNed’s Declassified School Survival Guide, iCarly, The Thundermans, Victorious and more on Nickelodeon. And the actors and actresses from the series have grown up too! Yep, this should come as no surprise considering it’s been literal years since these shows were on the air, but still, seeing how much they’ve all transformed over the years will probably make fans feel very, very old.

Take Miranda Cosgrove, for example. The actress, who starred as Drake Parker and Josh Nichols’ younger sister, Megan Parker, in Drake & Josh, may have been a kid when the show first started, but she’s an adult now! What about Paul Butcher? He played Dustin Brooks in Zoey 101 when he was only 10, and boy, has he changed a lot since then!

We decided to round up some then-and-now pics of the other brothers and sisters from our favorite Nickelodeon shows, so prepare to be shook over how much they’ve all grown. Seriously, you guys are not going to believe their major glo’ ups.

Scroll through our gallery to see what the siblings from our favorite Nickelodeon shows look like now.

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