Doctor Who Gave Up on the Fifteenth Doctor Much Too Soon

As the Doctor Who wraps up its latest season, we explore why the series gave up on Ncuti Gatwa’s Fifteenth Doctor much too soon.

Jun 3, 2025 - 20:20
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Doctor Who Gave Up on the Fifteenth Doctor Much Too Soon

Warning: This article contains full spoilers for Doctor Who Season 15.

With the latest season of Doctor Who now complete, we can look back and examine the entirety of the Fifteenth Doctor’s era. You didn’t read that wrong, by the way. Ncuti Gatwa’s time as the Doctor is officially over. Despite earlier comments from Gatwa that indicated he was intending to continue on for a third season, the Season 15 finale, “The Reality War,” ended on Gatwa’s Fifteenth Doctor regenerating into none other than Billie Piper, best known to franchise fans as Rose Tyler, the first companion of the modern era. It was a shocking moment for longtime viewers, but perhaps not in the way the show’s production team intended.

While it’s not entirely clear yet if Piper is actually playing the Sixteenth Doctor–the fact that the end credits don’t refer to Piper as “The Doctor” in accordance with convention has raised many an eyebrow–the reveal has landed with a thud for critics and audiences. In his review of the finale, IGN’s Robert Anderson said Piper’s appearance is a “hastily thrown-together pause button while the future of Doctor Who gets quietly reshuffled.” But it also speaks to how the show ended Gatwa’s tenure far before his time, in what appears to be a knee-jerk response to fandom backlash. Let’s take a look at why Doctor Who gave up on the Fifteenth Doctor too soon.

Lost in Space and Time

To say the last several years of Doctor Who have been a roller coaster would be something of an understatement. Chris Chibnall taking over as the third modern-era showrunner (after Steven Moffat) followed up a divisive run with a total travesty, despite the best efforts of Thirteenth Doctor actress Jodie Whittaker. Russell T. Davies, who launched the modern era, was recruited to return to the role of showrunner after Chibnall, and Ncuti Gatwa was announced as Whittaker’s successor, only for Thirteen to regenerate into yet another incarnation played by David Tennant. Three specials and one lore-questionable bi-generation later, and we finally received the Fifteenth Doctor, only for his run to meet with mixed reception from fans, some of whom felt the new era didn’t live up to Davies’ first tenure.

Opinions on Season 14 vary, but at least for me, I found it to be the return to form the series had desperately needed for years. Gatwa’s take on the Doctor and his dynamic with companion Ruby Sunday led to a mostly solid string of episodes, culminating in climactic fashion with the return of Sutekh, one of the Doctor’s all-time greatest enemies. Sadly, the series’ renewed creative spark rapidly drained away in Season 15, which is largely a collection of ill-conceived adventures missing a sense of focus. This is rather strange since the season has two main throughlines: the Doctor trying to get new companion Belinda Chandra back to an Earth he doesn’t know is destroyed, and the mystery identity of the recurring character Mrs. Flood.

Sadly, the series’ renewed creative spark rapidly drained away in Season 15.

The two wind up being connected, with Mrs. Flood being an incarnation of Classic Who villain The Rani, who is behind the destruction of Earth. Yet although these subplots are threaded through the whole season, the payoff still doesn’t feel like it has enough foundation. The Rani is poorly defined in her appearances here, and is defeated so quickly as to come off utterly ineffectual. Tying in another Classic Who antagonist in Omega also falls flat because he has so little screentime and doesn’t look anything like his old self. Everything about the two-part final story is just off, with every element somehow rushed or shortchanged, adding up to a confused mess of ideas with no fixed point of reference. That goes double for the regeneration, which lacks the gravity such a supposedly giant moment deserves.

A Rushed Regeneration

As it stands, “The Reality War” doesn’t feel like a regeneration story. Although the stakes are appropriately high with the Rani threatening the entire planet, the episode shifts focus in the back half to the Doctor trying to save Poppy, the child of the Doctor and Belinda who was wished into existence as a side effect of the Rani’s plan. Setting aside the weirdness of a familial connection between the Doctor and Belinda (even if it turned out to be fake), setting so much narrative weight on Poppy fails because the audience hasn’t spent enough time with her to be invested in her fate. Poppy is an abstraction, something the story assumes we care about because she’s a kid. So the Doctor shifts reality to save her, at the cost of his own life.

This change in what the episode is about makes the finale feel like two episodes in one. The villains are defeated ridiculously quickly to make room for an excuse for the Doctor to regenerate. Given Gatwa’s previously mentioned comments hinting at a third season, it appears parts of “The Reality War” were reshot to accommodate the regeneration. There’s simply not enough build-up to it, and what felt like the story of the Doctor trying to set Belinda’s life right across the season by getting her home was swept away at the last second for the Doctor trying to rescue Poppy. Belinda barely registers in the finale, with her entire motivation and personality changing into an all-consuming devotion to Poppy, to the point of the Doctor altering reality with his regeneration energy to make Poppy her biological daughter.

The regeneration doesn’t feel motivated either in-universe or out. It’s contrived as a story device, but it also feels unpleasant as a production one. Ncuti Gatwa, the first actor of color to play the Doctor as the show’s lead, is also the first one since Christopher Eccleston to not receive at least three seasons. These are shorter seasons on top of it, with eight episodes and one special apiece, meaning Gatwa’s entire tenure is a mere 18 episodes. Him being rushed out the door so quickly and being replaced by a blonde white woman who has already been extensively featured on the show would come across as comical if the optics weren’t also so cynical. If Billie Piper is indeed our Sixteenth Doctor, then not only is the show engaging in Disney Star Wars-level nostalgia bait, it’s also one foot into some rather murky ethical waters.

Paying the Piper

I say this with nothing but love for Billie Piper and her work as Rose Tyler: her time as part of Doctor Who should have stayed in the past. Rose is a great character, but she had a fairly definitive ending in the Season 2 finale, “Doomsday.” Her forced separation from the Doctor and arrival in an alternate reality where her father is alive but she can’t be with her true love was tragic and emotional in all the right ways. It’s still one of the best season finales the show has ever done. Yet Rose has slipped back into the show several times, from recurring guest appearances in Season 4 that led to her getting a consolation prize in the Meta-Crisis Doctor, her playing The Moment in “The Day of the Doctor,” and now potentially being the Sixteenth Doctor.

Quite frankly, it’s too much. Every subsequent Rose appearance after “Doomsday” dilutes that episode’s power, all for the sake of trying to please fans. And at a moment in time where the fandom is incredibly divided on Davies’ second era as showrunner, having Piper return feels like hitting an emergency button. Davies was already entering questionable territory with the return of David Tennant as the Fourteenth Doctor, although that was largely smoothed over by finally giving his Doctor and Donna Noble the happy ending they deserved in “The Giggle” after the unsatisfying conclusion to their relationship in “Journey’s End.” Bringing back Piper is a clear attempt to recapture the love the audience had for Davies’ first tenure, rather than building something new audiences could love about his current one.

Bringing back Piper is a clear attempt to recapture the love the audience had for Davies’ first tenure, rather than building something new audiences could love about his current one.

Ncuti Gatwa was an excellent Doctor. He and Jodie Whittaker both gave great performances that elevated some of the shaky scripts they were handed, which is what made their scene together in “The Reality War” such a joy to watch. It’s also a reminder that there was no good reason to not try to rally and give Gatwa a solid third season so he could go out on a high note. Even with all the missed opportunities this season like the dropped idea of Belinda as a hesitant companion, the return of the Rani and Omega, the underuse of Ruby Sunday, and the Fifteenth Doctor never battling the Daleks, Davies and company should have stuck to their guns.

Instead, our next Doctor (barring a massive swerve) looks to be a hollow echo of a great character from decades ago. It’s a crystallization of the existential crisis the show has been in since the Moffat era, which felt like the last time Doctor Who knew what it wanted to be. The future of Doctor Who should always be an exciting new path. Instead, this feels far more like a surrender.

Carlos Morales writes novels, articles and Mass Effect essays. You can follow his fixations on Twitter.