The Third Doctor
Exiled to earth in the late 19th century, the Third Doctor joined UNIT as their scientific advisor. For many years, he remained there, helping Brigadier Alistair Gordon-Lethbridge Stewart to thwart the many invasions and mad scientists to attack them. His companions narrate new adventures for him through the Companion Chronicles. New stories featuring Liz Shaw (the late Caroline John), Jo Grant (Katy Manning), Mike Yates (Richard Franklin), Brigadier Lethbridge-Stewart (Nicholas Courtney) and the King of Peladon (David Troughton) have been made available online.