Some of these have explored and offered accounts of Christie's disappearance in 1926, including the 1979 film Agatha ( with Vanessa Redgrave, where she sneaks away to plan revenge against her husband ) and the Doctor Who episode " The Unicorn and the Wasp " ( with Fenella Woolgar, her disappearance being the result of her suffering a temporary breakdown due to a brief psychic link being formed between her and an alien ).

* The tapes for the revival of BBC show Doctor Who were labeled with the anagram Torchwood, which later went on to be used as the name for a spin-off show.

* The Ark ( Doctor Who ), a 1966 Doctor Who serial

The 2012 Big Finish Productions Doctor Who audio play The Wrath of the Iceni starring Tom Baker takes place during Boudica's uprising against the Romans.

In September 2010, MIT students attempted to put a TARDIS, the time machine from the BBC's Doctor Who, onto a roof.

The Fifth incarnation of Doctor Who, Peter Davison, was noted for wearing a stalk of celery on his lapel, claiming it at one point to be an excellent restorative, though the human olfactory sense was comparatively weak.

" He, too, has become a noted writer of his own high-profile television drama programmes, including Queer as Folk and the 2005 revival of Doctor Who.

In 1966, Kit Pedler, a medical scientist, created the Cybermen for the TV program Doctor Who, based on his concerns about science changing and threatening humanity.

* The Daleks, Cybermen and Toclafane from Doctor Who.

* The Doctor Who serial State of Decay features a vampire named Camilla who in a brief but explicit moment finds much to ' admire ' in the Doctor's female travelling companion Romana who finds she has to turn away from the vampire's intense gaze.

* " Conspiracy ", third episode of the 1965 Doctor Who serial The Romans

* The episode " The Stones of Blood ", of the 16th season of Doctor Who, the Fourth Doctor encounters the Ogri, a silicon-based life form, and in the same sub-plot, the Megara, who are made entirely out of an unknown substance, possibly energy, and they uphold the word of the law, and execute all who break the law with a beam of energy.

# REDIRECT Doctor Who

* Deimos ( Doctor Who audio ), an audio drama

Davros is a character from the long-running British science fiction television series Doctor Who.

Cast in the role of Davros was Michael Wisher, who had previously appeared in several different roles on Doctor Who and had provided Dalek voices in the serials Frontier in Space, Planet of the Daleks and Death to the Daleks.

During Doctor Who Confidential Russell T Davies explained how he believes Davros to have survived the Crucible's destruction in some way, not specifically showing his death for this reason.

Doctor Who Magazine printed several comics stories involving Davros.

Speaking with the Emperor, the Doctor addresses him as Davros, but the Emperor responds " Who is Davros?

Paul Cornell's dark vignette in the Doctor Who Magazine Brief Encounters series, " An Incident Concerning the Bombardment of the Phobos Colony " occurs sometime between " Resurrection of the Daleks " and his assumption of the role of Emperor.

In 2008, Julian Bleach appeared live as Davros at the Doctor Who Prom, announcing that the Royal Albert Hall would become his new palace, and the audience his " obedient slaves ".

The Slitheen family also reappeared in several episodes in The Sarah Jane Adventures series, as well as cameo appearances in later Doctor who Episodes.

The role of Rost in the Doctor Who serial " Attack of the Cybermen " was meant for her but she allegedly had a disagreement with the production team over her fee and was replaced by Sarah Greene.

The new Doctor Who has spun off two series: Torchwood and The Sarah Jane Adventures.

* Russell T Davies, revived the Doctor Who franchise and created its spinoffs Torchwood and The Sarah Jane Adventures

In the Doctor Who spin-off series, The Sarah Jane Adventures, Sarah Jane Smith uses a " sonic lipstick ", which is a gift the Tenth Doctor gave her alongside a new model of K-9 and her scanner watch.

The Sontarans are a fictional extraterrestrial race of humanoids from the British science fiction television series Doctor Who, and also seen in spin-off series The Sarah Jane Adventures.

* 2007 television series The Sarah Jane Adventures is set in this time, the earliest January following " a year and a half " after Doctor Who episode " School Reunion ".

In " Death of the Doctor " ( a 2010 The Sarah Jane Adventures serial ), the Eleventh Doctor responds to a question from Clyde Langer by saying he can regenerate " 507 " times.

* Elisabeth Sladen, actress best known for playing Sarah Jane Smith in the sci-fi series Doctor Who died in Southall in April 2011.

For raising millions of dollars for causes including women's charities, AIDS sufferers and inner-city kids, Simon Fraser University conferred Sarah McLachlan the degree of Doctor of Fine Arts, honoris causa on June 13, 2011.

** In the Doctor Who spin-off series The Sarah Jane Adventures, Sarah Jane and the other regular characters live in Ealing, and the majority of the stories take place there.

The comic book " City of Devils " ( 1983 ) features two Doctor Who companions, journalist Sarah Jane Smith ( likeness ' Elisabeth Sladen ) and robot dog K-9 uncover a hidden city of Silurians ( here, ' Eocenes ') in an Egyptian archaeological dig, who seek peaceful coexistence with humans ; this comic strip is based on the premise of failed television spin-off series K9 and Company.

" Elisabeth Sladen, who portrayed Sarah Jane Smith in Doctor Who, said " although we got a lot of flak from Mary Whitehouse, I think it was quite unwarranted.

It's also the tune Sarah Jane Smith whistles when she leaves the Doctor at the end of the Doctor Who episode " The Hand of Fear ".

An unrelated character named Doctor Sarah Bellum appeared in Darkwing Duck.

The Doctor and Sarah arrive in 1970s London to find that the city has been evacuated, due to the mysterious appearance of dinosaurs.

The Doctor and Sarah Jane Smith arrive in a deserted London plagued by looters and lawlessness, where UNIT is assisting in maintaining martial law.

The Doctor and Sarah are arrested on suspicion of looting, but are rescued by Brigadier Lethbridge-Stewart who is heading the UNIT operation, and the Doctor begins to combat the monsters, which have necessitated the evacuation.

" In Doctor at Sea I was cast again as the Plain Jane character ... my rival in love was played by ... Brigitte Bardot.

* A 2011 direct-to-video animated movie The Voyages of Young Doctor Dolittle, starring Jane Seymour, Jason Alexander, and Tim Curry

For some of those writers, the BBV audios have offered a chance to revisit their creations: for instance, the range includes a story by Pip & Jane Baker explaining what happened to the Rani ( last seen in Doctor Who being abducted by a group of aliens that were also created by the writing pair ), and a series of stories by Lawrence Miles about his history-spanning terrorist organisation Faction Paradox.

Many soon-to-be-famous faces pop up, including: Lionel Jeffries (" Murder Ahoy " and " Chitty Chitty Bang Bang ", Leslie Philips, Jane Asher, Anne Reid ( Coronation Street and Dinnerladies ), Edward Mulhare ( The Ghost & Mrs. Muir and Knight Rider ), Patrick Troughton ( the Second Doctor ), Irene Handl, Desmond Llewelyn ( Q in the Bond films ), Sam Kydd, Sid James, Joan Sims and Bernard Bresslaw ( Carry On films ), Leo McKern ( Rumpole of the Bailey ), Alfie Bass ( The Army Game ), Sylvia Kay ( Just Good Friends ), Harry H. Corbett and Wilfrid Brambell ( Steptoe and Son ), Barbara Mullen ( Dr Finlay's Casebook ), Richard O ' Sullivan ( Man About the House ), Geoffrey Bayldon ( Catweazle ), Billie Whitelaw, Ronald Allen, Gordon Jackson.

Spider-Man brings the wounded Mary Jane to Doctor Strange, who performs a healing spell on her.

While Peter races around the world to stop Doctor Octopus's latest scheme, Mary Jane has begun to make arrangements for a party once the crisis is over, apparently confident that Peter will defeat his foe.