User blog comment:MyNameIsIzzyIEnjoyBeingFreaky/The age of our favorite charecters/@comment-25297892-20150601094638

I remember Owen was the oldest of them in TDI, while Cody was the youngest. Now, considering Chris stated that they had all passed the 16 ages, this means Cody is the only 16 years old while the rest of the cast must be around 17-18 and Owen, DJ and Others 19-20 years old (Owen grew on a fluent beard in a single day in Camp Castaway). So, as of now, they must be all around 20-21 except the younger of them, like Cody. Gwen by TDAS must be already 19 years old, don't forget she has a Young Brother with the same age of Cody.

II Generation chars seem some younger some older than the I ones, I doubt they're all around 16, I think they're all 18 years old, with few exceptions (like Dawn and Cameron). Brick was in army, too, so he must be 18-20.

III Generation can't be 16 years old, look at Jasmine, even if she's a giant, she can't be only 16. Probably, Jasmine is 20, Shawn is 18-19, Sky is 18, Dave is 17, Scarlett 18, Topher 19, Beardo 21-22, Shugar same. Only Max, the twins and Leonard look like 16.