Vienna Salvatori

Vienna Salvatori was a bounty hunter who was once tasked with capturing the Seventh Doctor and Kylo Sorsha by the Wrath Justice League. (AUDIO: The Shadow Heart)

Behind the scenes
A series for this character was announced before her first story had even been released. However, the Big Finish team were very quick to clarify that they "do not see it as a Doctor Who spin-off. It's its own thing.  It's not set in the Doctor Who world at all."