None of my pups have been given canon birthdays. Well... the closest would Nathan since there was an online comic where his mom was writing a letter to his father about him taking his first steps sometime before Nov 8 1968. And heroes wiki estimates it's usually around a child's first birthday for that which means possibly like an Oct birthday for him. Which means either Libra or Scorpio, possibly cusp. Which come to think of it? I could see it.

Xander never got one I think? It's figured he was born in 81, but other than that while some early birthday's are mentioned, there was no date given to them. Probably in the spring though? He strikes me as being a Taurus.

And Kate again never been giving a canon birthday, or even anything exact on her age. Figured 17-18ish for her. And in another game I had her birthday as being Dec 9th, and since that would place her as a Sag. (archer of course).