Who is anakin skywalker (Darth vader's ) dad?

He has no father, it was explained in the Esp. 1.

It was the theory of Jedi Master Qui-Gon Jinn that the will of the Force caused his birth. There is evidence to suggest that Anakin's birth may have been engineered by the Sith Lord Darth Plagueis as part of an experiment in immortality.

http://starwars.wikia.com/wiki/Anakin_Skywalker#Pr...

Yes, Darth Vader was originally a Jedi called Anakin Skywalker. He walks over to the dark side and becomes Darth Vader - his two children(about whom he doesn't know) are Luke Skywalker & Leia Organa

He doesn't have a father. It's explained in Episode I. When Qui-Gon asked Anakin's mother who his father was she said, "There was no father." She just conceived.

Midochlorian.

I think Kyle Reese was sent back in time to protect Mary from the terminator, and while he was there they got jiggy with it. Mary pretended that she was still a virgin and so even to this day Kyle has not had to pay child maintenance.

he was orphaned and was owned by the guy who bartered things and that's how ben kenobi recruits him and goes to bat with the council to train him to be a jedi

they never say you got me on that one all i know is is that obi one was like his brother

he doesn't have one. since he(was) the chosen one, he formed in his mother's womb

I dont think they ever said who