So we are fighting an unknown homicidal force - that has taken the form of your commanding officer and a cowardly alien - underwater, in a nuclear reactor. Anything else I should know?

The Doctor

Wait a minute, you know what this means? It means that they're not a natural phenomena. It means that someone is deliberately getting people killed, hijacking their souls and turning them into transmitters.

The Doctor

I want another adventure. Come on, you feel the same. You're itching to save a planet. I know it.

Clara

The Doctor: They're ghosts! Yeah, ghosts.
Clara: You said there was no such thing. You actually poo-pooed the ghost theory.

Bennett: Wait, you're going to go back in time? How do you do that?
The Doctor: Extremely well.

Lunn: Are you sure the Doctor won't just leave us here?
Clara: Guys look, this is how we roll. He's gonna go away, come back and we'll have to listen to how he did it.

The Doctor: What are you doing here?
Prentis: Ah yes, of course. This is the Fisher King. He and his armies invaded Tivoli and enslaved us for 10 glorious years.

Doctor, such an honor. I've always been a huge admirer. This is really a delight. Finally, someone worth talking to.

The Doctor

You robbed those people of their deaths. Made them nothing more than a message in a bottle. You violated something more important than time. You bent the rules of life and death. So I am putting things straight. Here. Now. This is where your story ends.

The Doctor

The Doctor: Listen to me, we all have to face death eventually, be it ours or someone else's.
Clara: I'm not ready yet. Don't want to think about that, not yet.
The Doctor: I can't change what's already happened. There are rules.
Clara: So break them.

O'Donnell: Guess that dead body wasn't so dead after all.
Lunn: And now we've got the writing.
The Doctor: The Fisher King did it himself.

This isn't about saving me, I'm a dead man walking. I'm changing history to save Clara.

The Doctor

Doctor Who Quotes

There's a horror movie named Alien? That's really offensive. No wonder everybody keeps invading you.

The Doctor

The Doctor: It's a risk.
Graham: Oh, like none of our other trips have ever been risky.
The Doctor: I have apologized for the Death Eye Turtle Army! Profusely.