Your narrator

That voice inside your head when you think/read something.

Does it sound like you or someone else? If someone else, who?

My narrator usually sounds a lot like the late Peter Jennings, but after babysitting and watching three hours of MLP (ugh) it's freaking Apple Jack. WTF?

I'm going to bed.

Tokio Hotel's singer

Usually my voice.

Never really noticed a voice while thinking/reading...

There are so many voices in my head I don't know who's who.

Bob Marley keeping telling me 'I shot the sheriff! but I didn't shoot the deputy!'

My inner voice is the "real" me, the confident guy that was much more social before high school got to him and forced me to put a mental block on that aspect of my personality. Unfortunately, I don't know how to unblock it so now I walk around like Mr. Brooks...

I would say it's mostly my own

Ozzy Osbourne

My own voice.

Ron Howard a la Arrested Development

I honestly don't know.

My voice as I hear my own voice.

Now that you mentioned it, been hearing Nicki Minaj voice in my head while I'm reading a book.

Morgan Freeman's voice.

My voice is what I imagine when I am reading as the narrator and I gradually develop voices of characters when reading their lines.

The cast of Top Gear

My own voice.