Calling Doctor Who fans...

Does anyone on my know much about Doctor Who, what his character is like? I'm writing a dissertation on what children think about scientists* and some of them said they thought the Doctor was one. I'm trying to include a short analysis on him, but as I don't watch the show it's proving difficult! Is he a scientist? Does he use science? If anyone has any thoughts at all they'd be gratefully received!


*They have drawn me pictures which are awesome. I'll pick the best to share after the dissertation's been marked :D