The Doctor has the gift of regeneration.
In the long running British science fiction television series Doctor Who , regeneration is a biological ability exhibited by the Time Lords , a race of fictional humanoids originating on the planet Gallifrey . The process has been used eleven times throughout the history of the franchise as a device for introducing a new actor for the lead role of its main character , the Doctor . The Doctor (Doctor Who) . The War Doctor and an aborted regeneration are counted in his previous cycle of twelve regenerations .