10 Doctor Who Moments Peter Capaldi Can't Be Darker Than

5. The Eleventh Doctor Punishes Solomon

However, it's not just the Tenth Doctor that dishes out the dodgy punishments. Whereas the Eleventh Doctor only threatened to kill his enemy in A Town Called Mercy, in the preceding - otherwise light-hearted - adventure Dinosaurs on a Spaceship, he actually went through with it and executed the episode's villain. With missiles heading to the spaceship filled with himself, his friends and a cargo of dinosaurs, the Doctor tricks the missiles into targeting the spacecraft of David Bradley's despicable space pirate Solomon - with Solomon still inside. The Doctor ignores the man's cries for mercy and leaves him to be destroyed. It's a shocking moment for an episode whose mission statement seemed to be 'family fun', to then end with the Doctor committing cold-blooded murder. It's the total control over who lives and who dies that the Doctor exhibits in this moment that make it such a dark one. Surely Number Twelve, having been gifted with saving his own people from the Time War in his previous incarnation, wouldn't chose to take a life like this again? We'll have to wait and see.