Dr. Who (Dr. Who and the Daleks)

Dr Who was an eccentric human scientist, living in a cottage in England with his granddaughters Susan and Barbara. He also had a niece named Louise.

Biography
Dr. Who had invented time travel in the form of Tardis, a space-time machine, the exterior of which looked like a police box.

When Barbara's boyfriend Ian Chesterton was visiting his house, he, Susan and Barbara went to have a look at Tardis. Ian accidentally pulled a lever and the four of them were transported to Skaro, the home planet of the Daleks.

Trying to return Tardis home, Dr. Who opened the doors to find a Roman legion marching towards the ship in 64. While in Rome itself, Ian soon ended becoming a gladiator (NOTDWU: Dr. Who and the Daleks, The House on Oldark Moor)

Tardis subsequently materialised on Oldark Moor, where Dr. Who and his companions encountered Count Tarkin. (NOTDWU: The House on Oldark Moor)

After Ian and Barbara had seemingly left Tardis, Dr. Who and Susan travelled to Mars with his niece Louise, where they once again encountered the Daleks as well as the telepathic native Martians. After Louise was captured by the Daleks, Dr. Who learned that the Martian Sphinx was in fact an ancient weapon whose secret had been forgotten. He was able to reactivate the Sphinx and used it to destroy the invading Dalek forces, only moments after he had rescued Louise from the Dalek Flying Saucer. (NOTDWU: Daleks Versus the Martians)

Dr. Who, Susan, Louise and a police constable named Tom Campbell later travelled to London in 2150 and found that it had been devastated by a Dalek invasion years earlier. Once there, the four of them assisted in freeing Earth from Dalek occupation. (NOTDWU: Daleks' Invasion Earth 2150 A.D.)

Canonicity
Over the years, several attempts have been made to reconcile the film character with the canon of the TV series, although all have been in an unofficial capacity:

Reference was made to Dr. Who in the novel Salvation. The book mentions the film Prey for a Miracle, released in 1970, and the Doctor's role in events was played by Peter Cushing as "the bumbling scientific advisor, Dr. Who". Critics noted that little was known about the "true" Doctor, suggesting that his was a "shadowy, manipulative presence".

The unlicensed book I Am the Doctor: The Unauthorised Diaries of a Timelord suggests that the films were based upon a memoir written by Barbara Wright of the TV series. As this book is not licenced, it cannot be considered canonical.

Nev Fountain's short story "The Five O'Clock Shadow", from the anthology Short Trips: A Day in the Life, reveals that Dr. Who and his eight-year-old granddaughter Suzy are fictitious creations invented by the real, Time Lord Doctor to keep his nemesis, Shadow (the embodiment of grief and sorrow), distracted until such time as he could overcome his grief and escape from Shadow's prison. Shadow has no hold over the cheerful, angst-free Dr. Who, who departs with Suzy on further child-like and wondrous adventures.[4]

The Sixth Doctor and his companion Frobisher attended the American premiere of Star Wars at Mann's Chinese Theatre in May 1977. During the screening, the Doctor thought that actor Peter Cushing (playing Grand Moff Tarkin) looked familiar, and seemed to remember meeting his granddaughter (PDA: Mission: Impractical). This exchange potentially supports any of the above theories.

Behind the scenes

 * Unlike the Doctor of the television series who, in common tradition, is never identified by the name "Doctor Who", the Cushing version is explicitly referenced by the name. The character's first name in this context is never revealed.
 * Stanmark Productions Limited obtained a license to make a series of fifty-two half-hour radio dramas based upon Doctor Who. After Boris Karloff proved unavailable, Peter Cushing was hired to play the role. Advertisements were published, but only a pilot episode (now lost) was ever completed. It is not known whether Cushing portrays the film version of Dr. Who in this production, or a version of the character more in keeping with the television series.
 * In common with that of the First and Eleventh Doctors, Tardis had a St John Ambulance logo, and was the same shade of blue.