User blog comment:Heinz84/Could Dr. Doofenshmirtz be Phineas and Candace's Biological Father?/@comment-1858894-20100722172147

I think him being a wanna be evil is a result of.. well all of the backstorys he tells I mean if I had a huge alimoney check every month and all the free time in the world I would probly be doing the same thing...