The grand finale of the Doctor Who mixed-media event Circuit Breaker is available now from Big Finish. This mixed-media event has spanned comics, novels, games and more, but the finale reaches its climax with Circuit Breaker: Full Circuit, a full-cast audio drama starring Jo Martin as the Fugitive Doctor and Ingrid Oliver as UNIT’s Petronella Osgood.
In this exciting finale by Robert Valentine, the Fugitive Doctor and her allies have discovered who is behind all the mysterious anomalies that have been occurring, and the culprit is about to make a final deadly threat.
The Doctor, Osgood and Andrew Turner are joined by UNIT Commander-in-Chief Kate Stewart when an unusual object manifests at the peak of the UNIT Tower. After investigation, it turns out to be a deadly Time Bomb, which not only threatens the Doctor’s current life, but the lives of all the Doctor’s incarnations. Only the Fugitive Doctor can save all the Doctors from the villain’s intricately planned scheme.
Joining Jo Martin and Ingrid Oliver in Circuit Breaker: Full Circuit are Jemma Redgrave as Kate Stewart, Nigel Sudarkasa as Captain Ford/Andrew’s Dad, Ony Uhiara as Sergeant Ryle/Andrew’s Mum, Dan Starkey, and George Naylor as Skaag.
Doctor Who – Circuit Breaker: Full Circuit is available now from Big Finish for £13.99 for the download, or £21.99 for the download and limited collector’s edition CD.
Originally published September 24, 2026. Updated September 23, 2026.
