Barset
From Tardis Wiki, the free Doctor Who reference
In 2012, Lord Barset travelled on an expedition to Antarctica, in order to find the remains of his grandfather's lost expedition in 1929. He was hoping to find a Silurian colony there, but in fact he found an ancient prison of the Ice Warriors, along with a comatose Seventh Doctor and his TARDIS. (AUDIO: Frozen Time)
Behind the scenes
Barset originally appeared in the Audio Visuals story Endurance, voiced by Joseph Howard.