Helen Lederer joins Jo Martin in Fugitive Doctor: Running Wild

The new Big Finish casting update names Lederer as a regenerated Cosmogon across three November audio dramas.

Big Finish announced on October 1 that Helen Lederer will play a newly regenerated Cosmogon opposite Jo Martin in Doctor Who – The Fugitive Doctor: Running Wild . Lederer's character pursues the Doctor through all three stories. The November 2026 full-cast box set contains Tholos , Scripture and Genesis of the Doctor .

Big Finish says the Daleks also appear, but it has not published a precise November release day. Its casting announcement and product listing provide the current cast and story details. Headline image: official Running Wild cover, Big Finish Productions / BBC.

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