Rob Roy MacGregor
From Tardis Wiki, the free Doctor Who reference
Rob Roy MacGregor was Laird of the clan MacGregor. He was Scotland's own Robin Hood. (AUDIO: City of Spires)
The Doctor later discovered that he was a fictional character who only existed in the Land of Fiction. He came with Captain Nemo and helped Jamie McCrimmon to defeat the effects of the Cybermen's reality altering device. (AUDIO: Legend of the Cybermen)