Uploaded April 2026 | Updated September 2026, 2 hours ago

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What if David Tennant never became the Doctor? What if Stephen Fry had written a 1920s fantasy episode? Or if J. K. Rowling had actually starred in an episode of Doctor Who?

Edited by ‪@DuncanJMcMillan

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In this deep dive, we explore the original plans for the Tenth Doctor—from near-miss casting decisions to completely unmade episodes, alternate storylines, and wild ideas that never made it to screen.

Discover how close we came to:

A completely different Tenth Doctor (thanks to some very questionable advice)
A lost Stephen Fry episode, The Green Knight
A bizarre crossover concept involving the Harry Potter universe
Massive rewrites to iconic stories like New Earth, Blink, and Journey’s End

We also break down behind-the-scenes changes from Russell T Davies and Steven Moffat that shaped the entire era—and reveal the alternate ending that could have completely changed Doctor Who history.

This is the story of what almost happened… and how those decisions created one of the most beloved eras of Doctor Who.

#DoctorWho