Michael Palin

Sir Michael Palin played The Voice in the Big Finish Torchwood series audio story Tropical Beach Sounds and Other Relaxing Seascapes #4.

Career
Michael Palin turned down the role of the Eighth Doctor in Doctor Who. (REF: Doctor Who: Regeneration)

He was a member of Monty Python with John Cleese.

In the Doctor Who universe
Sylvia Noble once compared her daughter, Donna Noble, when she indicated a desire to travel. (TV: The Sontaran Stratagem) In Vanezia, Rose asked the Tenth Doctor why he needed to use The Space Traveller's Guide, since she assumed he was "like Michael Palin or something". (COMIC: Opera of Doom!)