My tallest humanoid character is Armin at 6'5''
Shortest is Anita at 4'10'' (though she's only a teenager in the main part of her story so she might grow a bit)
Tallest dragon character is Anastasia at 15ft! I have a bigger dragon, but he's not uploaded yet.
Aaaand smallest dragon is Rikkat 5ft. I do have smaller feral characters, but I don't use them as much, plus they're normal-sized for what they are (cats), and Rikk is exceptionally small for his species.