Trevor Martin

Trevor Martin (17 November 1929-5 October 2017 ) played "Second Time Lord" in the Doctor Who television story The War Games and then an an alternative Fourth Doctor in Doctor Who and the Daleks in Seven Keys to Doomsday stage play, which premiered in December 1974.

Martin would reprise this version of the Doctor in audio adaptation made by Big Finish Production, released thirty-five years later, in 2009.

Martin also voiced the part of Kaido, Guard 2, Ungar, the Custodian of the Data Store and Jenhegger in the BBC Radio audio story The Paradise of Death and Professor Capra in the Big Finish audio story Flip-Flop.