Christopher is well known for his roles in some of the UK's biggest cult television programmes. This included playing the same character in two Patrick McGoohan dramas, Danger Man and The Prisoner, fueling speculation that they are possibly linked. He was also a regular guest in The Avengers and Doctor Who, playing in three episodes of each, in new Who Christopher played Colonel Hugh Curbishley in T he Unicorn and The Wasp with David Tennant and in classic Who as Sir Keith Gold in Inferno with Jon Pertwee, and as Henry Gordon Jago in The Talons of Weng-Chiang with Tom Baker . Predominantly a theatre actor, he has performed with the Royal Shakespeare Company. Having formed what many Doctor Who fans consider to be the best ever Doctor Who double act as Jago and Litefoot, Trevor and Christopher have reprised the roles on audio in Big Finish's The Mahogany Murderers and their forthcoming Jago and Litefoot series.