April 15 marks the beginning of the end for Peter Capaldi on BBC America's "Doctor Who."
At the end of the upcoming 10th season, Capaldi will wrap up his three-season run as the time-traveling, human-loving protector of the universe, the 12th official regeneration of the Doctor.
Capaldi's still-unnamed replacement will take on a tradition that dates back to 1963 and includes 14 men who have played the role over nearly five decades.
But as the search is on for Capaldi's successor, it's a great time to remind ourselves of the Doctors who won our appreciation and those who didn't.
Here is every Doctor Who ranked from the worst to the best:
SEE ALSO: The coveted 'Doctor Who' role almost went to a black actor
DON'T MISS: 18 TV shows you're watching that are probably going to be canceled
14. Peter Cushing (1965-1966)
As a rule, we can't let someone who didn't play the Doctor for an actual TV season outrank those who did. That's the case for Peter Cushing, who played the doctor in two movies during the show's William Hartnell years: 1965's "Dr. Who and the Daleks" and 1966's "Daleks – Invasion Earth: 2150 A.D." He had the misfortune of playing the doctor during the early years, which pulled heavily from the mad-scientist stock character and hadn't quite revealed his warmer side.
13. Paul McGann (The Eighth Doctor, 1996)
Paul McGann was considered highly unremarkable in the 1996 TV movie "Doctor Who." That may explain why it took another nine years before BBC brought back the series. He was given a chance to prove himself in the role again in a 2013 mini-episode in which his decision to fight in the Time War gave us John Hurt's the War Doctor. For that, we owe him our thanks.
12. John Hurt (The War Doctor, 2013)
Yes, it's kind of confusing where the late John Hurt's incarnation of the doctor, the War Doctor, fits into the picture. Though he appears for the first time during 2013's 50th-anniversary special alongside Matt Smith's Eleventh Doctor, the War Doctor actually lands after Paul McGann's Eighth Doctor.
Hurt won over fans with his portrayal of the doctor who chose to fight in the show's epic Time War.
Fun fact: At 74, Hurt was the oldest person to play the Doctor and appeared alongside Smith, who at 26 when signing on, was the youngest person to play the role.
See the rest of the story at Business Insider