Something I wanted to go over, how old the other human Allies are compared to the Turtles. I'll also be including the bullies such as Barry and Tiffany. But I will not be including the canon human Allies, such as April, Casey, Karai, or Shinigami, the Rainbooms or any of the Equestria Girls characters. With that said, let's begin.

Keno: 16.

Zach Roberts: 13.

Caitlyn Roberts: 14.

Buffy Shellhammer: 16.

Tiffany: 15.

Gabrielle Riviera: 16.

Vern Fenwick: 15.

Angel Bridge: 12.

Carter: 17.

Burn Thompson: 16.

Max Jones: 15.

Pervis Walker: 14.

Hanna Hamato Wu: 14.

Barry: 15.

Sid Jones: 19.

Robin O'Neil: 18.

7861636
Wait, what about Sid Jones?

7861636
That works

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He can either be 23 or 24.

7861636
No argument here

7861639
Oh, knew I was forgetting someone.

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Just added Sid and Robin.

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That's better.

7861640
What about for Roland and Obaki?