Dr. Who — who usually uses a police shelter for travel — will be zooming through time and space on envelopes starting later this year.

Britain’s Royal Mail is marking the 50th anniversary of the science-fiction show “Doctor Who” with a series of stamps featuring each of the 11 actors who have played the title role. Those featured include the current doctor, Matt Smith, as well as past Time Lords such as David Tennant and Christopher Eccleston.

The series will also include a miniature sheet that features four of the doctor’s iconic foes — a Dalek, an Ood, a Weeping Angel and a Cyberman.

The stamps will be available starting at the end of March.