Cyrian
From Tardis Wiki, the free Doctor Who reference
Cyrian was a young man who, while stranded on the planet DV Acrol 8 and being pursued by Cybermen, was rescued by the Rani, who took him aboard her TARDIS to become her travelling companion. (NOTDWU: Rescue) He assisted her in her plot to trap various incarnations of the Doctor. (NOTDWU: Dimensions in Time)