Okay okay, I'm Obito's dad. I abandoned him at child birth and the mother is Sasuke's mom. Believe me man, these Uchiha chicks love the lizard.
Obito is the only uchiha that wasn't living with his clan, They never showed how he grew up or even mentioned his parents period. We don't know anything about obito period except what happend in the kakashi chronicles. Obito is a big mystery and im betting bigtime that he is tobi("No One"). . .Sakura is a main character and we just met her parents in a filler recently =\