Episode 1 - A Dame to Kill
- The implied fate of all of those people in the park, not to mention Jim and Liz. Frozen forever, timeline snapping back and forth until you die? *shudder*
- The Master was perfectly willing to kill the Doctor, just to get his revenge. It's never mentioned how he actually accomplished it.
Episode 2 - A Loud Hush
- The Gentlemen are demonic humanoid creatures who steal the voices of humans and then hold them in place to cut out their heart. They use the hearts to create more of themselves.