Get ready for a major walk down memory lane! Over the years, Nickelodeon shows introduced fans to some of their favorite actors and actresses when they were just starting out in the entertainment industry.

Now, pretty notable cast members from iCarly, Drake & JoshKnight Squad, Cousins for Life, The Thundermans, The Naked Brothers Band, Every Witch Way, Sam & Cat, Big Time Rush, Zoey 101 and Nicky, Ricky, Dicky & Dawn are all grown up! Many of these celebs — who viewers may remember as little kids — are now well into their teen years, with some even in their 20s!

J-14 broke down the careers of every little kid from your favorite past Nickelodeon shows — including their current ages, what fans can see them in next and even their shocking transformations. Scroll through our gallery for a full breakdown of these stars’ careers, and prepare to be seriously shook by their major glo’ ups.

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