Clara Oswald: You're going to help me?
The Doctor: Well, why wouldn't I help you?
Clara Oswald: Because of what I just did, I just...
The Doctor: You betrayed me. You betrayed my trust. You betrayed our friendship. You betrayed everything... you let me down!
Clara Oswald: Then why are you helping me?
The Doctor: Why? Do you think that I care for you so little that betraying me would make a difference?
- Spoilers (1)
The Doctor: Who are you?
Missy: Oh, you know who I am. I'm Missy.
The Doctor: Who's Missy?
Missy: [groans] Please, try to keep up! Short for "Mistress"... Well, couldn't very well keep calling myself "The Master", now could I?
Clara Oswald: What do we do now? What happens now, you and me? Doctor?
The Doctor: Go to hell.
Clara Oswald: Fair enough. Absolutely fair enough.
[starts to leave]
The Doctor: Clara? You asked me what we're going to do. I told you: we're going to Hell. Or wherever it is where people die. If there is anywhere. Wherever it is, we're going to find Danny, and if it is in any way possible, we're going to bring him home.
Seb: And the Wi-Fi is better out here. Don't know why.
Danny Pink: Wi-Fi?
Seb: Yeah. Still a bit spotty. Basically...
Danny Pink: You have Wi-Fi here? You- You have I-Pads in the Afterlife!
Seb: I-Pads? We have Steve Jobs!
Missy: You know the key strategic weakness of the human race? The dead outnumber the living.
The Doctor: Who maintains your heart?
Missy: My heart is maintained by the Doctor!
The Doctor: Doctor who?
Missy: Doctor CHANG!
The Doctor: Who are you?
Missy: I am Missy.
Clara Oswald: Missy?
Missy: [in a monotone] Mobile Intelligent Systems Interface. I am a multi-function, interactive, welcome droid, helping you, to help me, to help you.
The Doctor: You're very... realistic.
Clara Oswald: Tongues?
The Doctor: Shut up.
Missy: You also have not received the official welcome package...
Clara Oswald: [backing away quickly] Oh, I'm good, thanks, no worries!
Dr. Chang: There is one simple, horrible possibility that has never occurred to anyone throughout human history.
Clara Oswald: [horrified] Don't say it...
Dr. Chang: The dead remain conscious... The dead remain fully aware of everything that is happening to them.
Missy: [about the Nethersphere] Imagine you could upload dying minds to that, edit them, rearrange them, get rid of all those boring emotions, ready to be re-downloaded. Meanwhile, you upgrade the bodies. Upload the mind, upgrade the body. Cybermen, from cyberspace - Now why has no one ever thought about that before?
The Doctor: Exactly what is 3W?
Missy: Apologies. Clearly you have not received the official 3W greetings package.
The Doctor: Well, no, it's just an unexpected...
[Missy grabs the Doctor and gives him a long, passionate kiss]
Clara Oswald: I don't deserve a friend like you.
The Doctor: Clara, I'm terribly sorry - I'm exactly what you deserve.
Missy: I've turned the lift off' though.
The Doctor: I presume you have stairs.
Missy: Well, I'm not a Dalek!
Clara Oswald: You know what, Doctor? When it comes to taking control, you really are out of your depth!
[throws Tardis keys into the volcano]
The Doctor: If I change the events that brought you here, you will never call me and ask me to change those events. Paradox loop. The timeline disintegrates, your timeline.
The Doctor: [to a crowd of people on the street] Get away from here, all of you, now! Now!
Missy: I'm sorry, everyone, another ranting Scotsman in the street. I had no idea there was a match on.
The Doctor: Get away, go!
Missy: Stop shouting, love. Stop making a fuss, it's too late.