"So happy to run into my fake adoptive dad #rudy @realdukeofearles missed you man! #kickinit #sam," Rio posted on Instagram with a new pic.
Rio was only 10 years old when he appeared on the Disney XD series, so naturally he's grown up a ton – and now he's a teenager that's even taller than Jason!
"Ok ok I changed a bit😏 #kickinit #season3 #sam @realdukeofearles," Rio posted along with another side-by-side collage. When you see then-and-now photos like that, it's hard to believe!
Click through the gallery to see how more of the cast members have transformed since the show's premiere season. Then, let us know if you're excited to see Rio and Jason kickin' it again by commenting below!