Four years can change a lot. After all, it's the difference between your freshman year and senior year, and everyone knows that's peak glow-up time. Well, today is actually the 4-year anniversary of Dog with a Blog first premiering on the Disney Channel on October 12, 2012 – and you won't believe how much the cast has grown up since then.
Click through the gallery to see surprising then-and-now photos of each actor at the show's start and their most recent looks. Then, make sure to share your favorite memory of the show with us in the comments section below.