The Ninth Doctor
Christopher Eccleston was the first "doctor" in the newest pat of the ever-growing Doctor Who series.
The Tenth Doctor
David Tennant was a true crowd pleaser as he played the role of the tenth version of the doctor.
The Eleventh Doctor
Matt Smith plays the eleventh and does an AWESOME job! From bow-ties to fezzes to Stetsons!
The Twelfth Doctor
Very recently announced is... Peter Capaldi. I don't know what his character is gonna be like but I'm hoping it will fill the shoes of David and Matt. (Though thats a pretty tough job!)
The Thirteenth Doctor
John Hurt was also recently announced to be the very LAST doctor. He is the one to spills the secret of his name and he seems to be a tough and unlikeable character but we'll see.