The Last Regeneration (unreleased comic story)

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The Last Regeneration was a two-page comic story pitch by Stephen Cole and Lee Sullivan to introduce the Doctor's last incarnation.

It was published in Robot #0 (July 1998), a limited run of "dummy mags" sent to focus groups that was ultimately never picked up by the BBC.

Characters

 * The Doctor
 * Cybermen

Plot summary
An amnesiac, ginger-haired Doctor is running from the Cybermen in a cold and filthy city of tall, metallic buildings. The Doctor recognises the sound of The TARDIS as it materialises to shield him from the Cybermen's beams. He opens the door to enter the TARDIS, stating "I am a Time Lord! I am... The Doctor! And I don't belong to anyone..."

The Sci-Files

 * In 1997, Radio Times editor Matt Bookman's pitched The Sci-Files, a new magazine featuring comic strips for Doctor Who,, Superman, and Red Dwarf as well as a Wallace & Gromit humour strip.
 * Two mock-up covers were made for The Sci-Files #1. The first had Dean Cain's Superman, the cast of Bugs, Kryten from Red Dwarf, Mulder and Scully from The X-Files, and a panel from Radio Times Eighth Doctor comic. The second cover featured the Eighth Doctor, Dan Dare, Kryten, and Wallace & Gromit.
 * Originally, the Doctor Who comic would feature the Eighth Doctor. However, the Eighth Doctor was co-owned by Universal Pictures and required a licensing payment to Universal. This led to the idea of creating a new incarnation of the Doctor.

Robot
"The idea was that [the Doctor] didn't know who he was and was on his last regeneration: I'm sure Stephen [Cole] had an idea of where it would go, but I would doubt that he fleshed it out more than a pitch."
 * The Sci-Files was retitled Robot #0 (July 1998) and printed in a limited run (250 copies) of "dummy mags". These were sent to focus groups aged 13 to 30. Sullivan recalled that "kids didn’t rate strip art much and really didn't know much about Doctor Who".
 * Two mock-up covers were made for Robot #0. One with Lost in Space (1998) art by Garry Leach and one with Cyberman art by Lee Sullivan.
 * The magazine would feature a Doctor Who comic by Lee Sullivan and Stephen Cole (featuring a new incarnation of the Doctor), a Red Dwarf comic by David Pugh, and Zero Zone (an original comic by Garry Leach).
 * Lee Sullivan's new Doctor was ginger, a trait in common with "Merlin", a different future incarnation of the Doctor first seen in the 1991 Battlefield novelisation. Coincidentally, the Tenth and Eleventh Doctors would go on to express disappointment at not being ginger. In a 2013 interview, Lee Sullivan said he painted his Doctor's hair as "sandy" but said that it is "ginger-lite". Furthermore, the "Merlin" Doctor "thought he was the last" in Paul Cornell's 2020 story Shadow of a Doubt.
 * Sullivan said he had Alan Rickman in the back of his mind while designing his Doctor, but he was not modelled exactly on him. He recalled being given carte-blanche for designing his Doctor and described his outfit at "Regency and Romantic looking".
 * Sullivan recounted he was given no guidance for the design of the Cybermen. So he, Cole, and/or Bookman did a "rework of their original design".

- Lee Sullivan in 2013

Concept art
Lee Sullivan made multiple pages of concept art for the new Doctor, the new Cybermen, and even a new TARDIS interior that went unused.