The Doctor has battled Daleks, Cybermen, rogue Time Lords, and even farting aliens. But can he handle the nightmare that is the U.K. postal system? From BBC News:
Tom Baker, David Tennant and Patrick Troughton are to feature on a special set of Royal Mail stamps in 2013.
The collection marks the 50th anniversary of sci-fi show Doctor Who, with all 11 Doctors getting their own first class stamp.
Four of the show's most notorious villains, including the Daleks and the Cybermen, star on the second class set.
The show first ran from 1963 to 1989. A successful revival returned it to Saturday night schedules in 2005.
Andrew Hammond of the Royal Mail said the commemorative selection "pay tribute to the brilliant actors that have played the Doctor over the years, as well as the adversaries that helped make the show so popular".
The stamps will be available in March, and you can check them all out below. For the record, if I were Matt Smith I would have very much asked why I was the only Doctor pictured with his mouth hanging open in dull surprise.
William Hartnell as the First Doctor
Patrick Troughton as the Second Doctor
John Pertwee as the Third Doctor
Tom Baker as the Fourth Doctor
Peter Davison as the Fifth Doctor
Colin Baker as the Sixth Doctor
Sylvester McCoy as the Seventh Doctor
Paul McGann as the Eighth Doctor
Chris Eccleston as the Ninth Doctor
David Tennant as the Tenth Doctor
Matt Smith as the Eleventh Doctor