It's an emotional night for Jessie fans: the series, which has been on the Disney Channel since 2011, is coming to an end. As the show airs its finale episode tonight, we'll naturally be thinking back to how much has happened over the span of four seasons – and how much each of the actors have grown up!
Seriously, when we first met Debby Ryan, Peyton List, Skai Jackson, Karan Brar, and Cameron Boyce's characters in the first season, they were so young! Now, they're practically all grown up, and we can't believe how much they've changed.
Click through the gallery to see surprising then-and-now pics that illustrate just how much each actor has grown up during their time on the show. Then, leave your fondest memories of the show in the comments section below!