Doctor Who: The Third Doctor Adventures Doctor Who: The Third Doctor Adventures "The Third Doctor Adventures" is a Big Finish Productions audio play series based on the TV show Doctor Who. It sees the return of Katy Manning as Jo Grant and Richard Franklin as Mike Yates, while the voice of the Third Doctor is performed by Tim Treloar replacing the original actor, Jon Pertwee, who died in 1996. The first set of stories was released in September 2015. A second and third volume were released November 2016 and August 2017 respectively. A fourth volume was released in March 2018. A fifth volume was confirmed in
K9 (Doctor Who) Jaeger) in the year 5000. K9 subsequently travelled with the Fourth Doctor (Tom Baker) and Leela (Louise Jameson) as a companion of the Doctor in his adventures in time and space until "The Invasion of Time" (1978). In this serial, K9 decides to remain on the Doctor's home planet of Gallifrey with Leela. Immediately afterwards, "Doctor Who" would introduce a second incarnation of K9, played by the same prop; the last scene of "The Invasion of Time" shows the Doctor unpacking a box labeled "K9 Mk II". Although the first incarnation of K9 does not appear again in televised "Doctor