Summary
DuringDoctor Who’s visit toSan Diego Comic-Con, showrunner Russell T Davies opens up about the upcoming season 15. The past season introduced Ncuti Gatwa as the Fifteenth Doctor and Millie Gibson’s Ruby Sunday as his companion. Unfortunately for the Doctor, Ruby leaves his side after discovering her biological parents inseason 14’s final episode. Despite Ruby stepping aside, the two swore to reunite sometime in the future. That reunion may be coming sooner than either expected.
In an interview withVariety, Davies spoke about how the Doctor and Ruby have been progressing since the season finale. He explained that next season will reintroduce the characters, andthe show will even debut a new companion, played by Varada Sethu (Andor). Davies believes that it will help reestablish both characters by offering a new setting and new dynamics. Check out his full quote below:

We see The Doctor and Ruby in a new light, and with a new friend. Like you’re saying,different friends bring out different aspects of you.
Doctor Who Season 15 Will Redefine The Doctor & Ruby
Season 15 will also introduce Varada Sethu’s character.
Despite season 14’s recent ending, season 15 has already wrapped filming and is gearing up for a May 2025 release. The tight connection makes sense, as both seasons were confirmed at the same time, which offered Davies the opportunity to plan both together. The upcoming season will technically serve asDoctor Whoseason 2 since the Disney+ era led by Davies chose to restart the season count, though the show still retains its strong connections to its past.
Doctor Who Season 15: Release Date, Cast, Story, Trailer & Everything We Know
With a brand new Doctor at the helm, the TARDIS is off on more exciting adventures and there is already a ton of news about Doctor Who season 15.
The Doctor will still be facing off against the newly-introducedPantheon of the Gods. Ruby is expected to rejoin him, but he will also be joined by Varada Sethu’s Belinda Chandra. Her casting was confirmed in April, but the details behind her inclusion have not yet been confirmed. The actor is best known for her portrayal of Cinta Ka inAndor, another Disney+ show that earned widespread critical acclaim. Sethu’s introduction will help change the Doctor and Ruby’s dynamic by giving them another character to play off of.

A trailer for the new season is likely weeks or months away, and it will not be the next release. The show will first return for its annual Christmas special, which was written by former showrunner Steven Moffat. Nicola Coughlan (Joy) will be fighting alongside the Doctor as she faces off against a Silurian threat. Joy is not likely to join the Doctor in his adventures with Ruby and Sethu’s character, though it is impossible to know so early. With the Doctor adding another companion,Doctor Whowill certainly be changing the interactions between Ruby and the Doctor.
Doctor Who
Cast
Doctor Who: Released on July 02, 2025, this series follows the Doctor and their companion as they journey across time and space, encountering a range of extraordinary friends and adversaries, expanding the universe of the long-running British science fiction series.