10 Most Underused Doctor Who Characters

10. Kate Stewart

It's rare to meet a character who's instantly likeable, but UNIT boss Kate Stewart ticked that box with her debut appearance in Series 7's The Power Of Three.

From here, she popped up a few more times alongside the Eleventh and Twelfth Doctors, before unceremoniously signing off with Series 9's The Zygon Inversion.

This entry goes hand-in-hand with the way UNIT has been treated in the modern era of the show, because, overall, this element of the Whoniverse has been woefully underserved. The Power Of Three showed great promise by re-introducing Kate's UNIT as a more science-led organisation, but this angle was slowly stripped away until the gun-toting goons took centre-stage in that aforementioned Zygon story.

Oh, and then, UNIT was completely shut down by Chris Chibnall, just so he could make a lame joke about Brexit. "Misjudged" doesn't even begin to cover it.

To put it simply, UNIT and Kate deserve better. A character as intelligent and engaging as she is warrants way more respect - especially when you consider that she's the daughter of one of the most important characters in Doctor Who history.

Fortunately though, there is hope. The reason we've put Kate in tenth place is because she's due to return in Survivors Of The Flux, so depending on how she's handled there, we might be able to forgive some of our current complaints!