I'm sure I'm not the only person who daydreams about who
Nope, didn't think so. In fact, I waste a lot of time Googling pictures of different actors, agonizing over the different choices so much you'd think it was my sworn duty to find actors IMMEDIATELY to fill the roles of the characters in my...thus far rough, rough first draft story. *cough* Don't worry, I'm working on it. Any day now.
My main character is a sixteen-year-old girl named Tenny. She loves music, and music is a huge part of the story. She's friendly and level-headed, with a girl-next-door vibe, but also naive and yeah, a bit spoiled. She also has an ethereal look about her that makes her freaky at all the right times.
For her I would choose Annasophia Robb.
Not only is she lovely, she's tomboyish, too!
And, she can bring the attitude. BRING IT.
Don't mess with her when she's in this mood. Or if you're the bad guy.
I think Annasophia (did you guys know she pronounces it "AHH-nuh"? I didn't, but it makes me like her even more.) could do it all.
And the cool:
Who would play your MC?