The Deepest Tragedian (audio story)

 was the fourth and final story in The Second Doctor: Volume Three, produced by Big Finish Productions. It was written by Penelope Faith and featured Wendy Padbury as Zoe Heriot.

Publisher's summary
Zoe is brilliant. Zoe loves to prove it, helping the Doctor and Jamie in their travels, coming to the rescue with a realisation or solving a puzzle. But she's about to meet a puzzle that's difficult to solve. A puzzle with a face. A puzzle with a heart. A puzzle that spells doom for the Doctor...

Plot
to be added

Cast

 * Zoe Heriot - Wendy Padbury
 * Tom Waugh - Richard Unwin

Worldbuilding
to be added

Continuity

 * Though it is not explicitly stated, it is implied Tommy has been sent by the Time Lords to recruit the Doctor to fight in the Time War. In flashbacks, Tommy refers to Sky Trenches (TV: The Last Day) and sound effects of Dalek weaponry can be heard.