Doctor Who: 15 Greatest NuWho Deaths So Far
10. Osgood (Death In Heaven)
While it's been confirmed that Osgood will be coming back in Series 9, the only people who know how that will work are the people working on the show, and the impact of the character's death still feels raw for many fans.
The fan favourite died at the hands of the psychotic Missy, the Doctor's arch-enemy. Missy sliced through UNIT as if the worldwide defence organisation had been a wet paper bag, and ruthlessly dispatched Osgood as part of that. Breaking free from her restraints, she grabs Osgood and disintergrates her, leaving just her glasses for the Twelfth Doctor to tread on. And Missy being Missy, she does this all with a sense of malicious glee that cemented her villain status and the tragedy of Osgood's death. Although the most ineffectual UNIT guards ever (who don't even notice Missy refreshing her lipstick) take away from the scene, it's still a very strong one.