A five-stamp miniature sheet will also be released, with pride of place going to the TARDIS as a first-class stamp. The other four stamps will be for second class and will feature a Dalek, Cyberman, Ood and Weeping Angel.
Andrew Hammond, Managing Director, Stamps and Collectibles at Royal Mail, said:
We are delighted to be able to celebrate this remarkable 50th anniversary. These stamps 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.
Fiona Eastwood, Product Development Director, BBC Worldwide Consumer Products, said:
The Doctor Who stamps are the perfect way to mark and celebrate the 50th anniversary of this much-loved programme. The collection is really impressive, and I am sure they will delight all Doctor Who fans.
The stamps - which will be available to buy online from abroad - will be released on Tuesday 26th March 2013 and can be pre-ordered by registering with Royal Mail. A dedicated link for overseas buyers should be available tomorrow but if people from overseas want to register before then they can do so by using the "Register" link at the top right of the page linked to above.
More information relating to the issue will be released nearer the time, and Doctor Who News is delighted to say that it will be running a competition when the stamps are issued, with some terrific Doctor Who stamp prizes from Royal Mail.
UPDATE: Overseas residents can now register their interest in the stamps by using this dedicated link.
(with thanks to Royal Mail)