10 Worst Doctor Who Companions Ever
7. Katarina
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Doctor Who would go on to have huge success with a historical companion when it cast Frazer Hines as Jamie McCrimmon in 1966. But the show's first attempt proved to be a steep learning curve.
First introduced in The Myth Makers, Katarina was a handmaiden from ancient Greece, whose primitive frame of reference provided all sorts of headaches for the writers.
How was she supposed to react to the events of Terry Nation's epic space opera The Daleks' Master Plan when she didn't even know what a light bulb was? And how many weeks could they sustain the central idea that Katarina believed that the Doctor was some kind of god?
Katarina was such a bad idea for a Doctor Who companion that she was swiftly killed off by producer John Wiles and script editor Donald Tosh four weeks into her first proper serial. Still, as poorly realised a character as she was, she really didn't deserve to be held at knifepoint then ejected into the vacuum of space.