The Catalyst (Doctor Who Audio)
The Catalyst is a Big Finish Productions audiobook based on the long-running British science fiction television series Doctor Who.
The Companion Chronicles "talking books" are each narrated by one of the Doctor's companions and feature a second, guest-star voice along with music and sound effects. Louise Jameson reprises her role as Leela.
Read more about The Catalyst (Doctor Who Audio): Plot, Cast, Continuity