- The Tardis at first was somewhat camouflaged by the environment to go undetected (eg, if they traveled to ancient Egypt Sphinx was transformed into in a parking lot would be a car etc etc) but the show's producers to reduce the fixed costs a police box from the 60s but with some differences.
- The Daleks claim to be a simile of the Nazis.
- Torchwood is an anagram of Doctor Who, and was the name we put to the tapes containing newly recorded chapters that were sent to Cardiff (where filming the series) to London (BBC center) to avoid fans series of stolen or make copies.
- In recent years, the BBC is taking an intensive recovery campaign called "Doctor Who Lost Chapters" were those who in the 70s the BBC delete your files (do not really know why), through individual recordings and other chains that bought the series at the time have been recovered mostly disappeared leaving only 20. Right now honors the person that may have a life-size Dalek.
- David Tennant received harsh criticism when officially confirmed it would be the tenth Doctor, even collected signatures from fans of the series for his dismissal.
- Matt Smith was going to be a footballer but back injury ended his career and decided to go to an actor.
- Eccleston was under contract for 2 more years but due to their differences with the directors of the series and the poor treatment suffered by workers says the series terminated the contract leaving the show's first season.
- Out of England, countries with older fans of the series are Canada, Australia and New Zealand, in the U.S. there is also a small section of the population follower of the series that has grown considerably in recent years.