Ingrid Oliver is returning as Petronella Osgood in Circuit Breaker, bringing back one of Doctor Who’s most recognisable UNIT figures for a story that starts in the Black Archive and runs through the summer across audio, publishing, gaming and digital. The official social channels teased the comeback with a new image and told fans that Osgood is “awaiting YOU in the Black Archive” ahead of the first instalment on 25 June.
That matters because Osgood has been gone from the screen since The Zygon Inversion in 2015, when she was last seen in season 9. Before that, she first appeared in the 50th anniversary special The Day of the Doctor and became tied to the era of the Eleventh and Twelfth Doctors, giving this return a direct line back to one of the franchise’s most durable supporting characters. The caption posted online set the tone for the launch: sign up to UNIT HQ for exclusive access to Circuit Breaker, which is due on 25 June.
The story begins in UNIT’s Black Archive, where the newly appointed Head of the Black Archive, Osgood, and her assistant Andrew turn to the Doctor for help. Jo Martin plays the Doctor in the project, and the synopsis says that version of the character confronts the Daleks, Cybermen, Sontarans and a rogue Weeping Angel. It is a broad, crowd-pleasing setup, but it is also a reminder that Doctor Who is leaning hard into familiar faces and familiar threats to launch a new kind of release.
Circuit Breaker is not a single episode but a global multi-platform story built with Titan Comics, Doctor Who Magazine, Audiobooks, East Side Games, Puffin, Books and Big Finish. That scale is the point. The franchise is trying to turn one return, one archive, and one Doctor into a summer-long event that can move across formats without losing the thread.
The wrinkle is that the center of this launch is not the Doctor, but Osgood. In a project designed to stretch across media, the clearest hook is a character who first appeared 11 years ago and was last seen nearly a decade ago. That is a sign the production is betting that older Doctor Who continuity still has enough pull to carry a new rollout, even as it uses newer faces like Martin’s Fugitive Doctor to push the story forward.
For fans, the answer to the question raised by the teaser is already clear: yes, Osgood is back, and she is not just back in passing. Oliver’s return anchors the opening of Circuit Breaker on 25 June, with the rest of the project set to unfold throughout the summer.
