Bradley Walsh credited as playing...
Graham O'Brien
- The Doctor: Do you have any idea where those planets might be?
- Graham O'Brien: You get me an A to Z of the universe, and I'll be able to stick my finger straight... Um, no. I've got no idea.
- The Doctor: What did the telepathic circuits lock onto?
- Ryan Sinclair: [to Graham] If they were hooked into your mind, no wonder we're somewhere dark and weird.
- Graham O'Brien: Oi!
- The Doctor: I should say a reassuring thing now, shouldn't I?
- Graham O'Brien: Yeah, probably.
- The Doctor: I'm still quite socially awkward. So, I'm just gonna subtly walk towards the console and look at something. And then in a minute I'll think of something that I should've said that might have been helpful.
- Graham O'Brien: Are you sure it's safe?
- The Doctor: You trust me, don't you?
- Graham O'Brien: Have I got to answer that?
- The Doctor: Oi!
- Graham O'Brien: Is it gonna hurt?
- The Doctor: No. Probably not. Maybe. Yeah. Ready?
- Graham O'Brien: No!
- The Doctor: So, how do you defeat two rampaging immortals? Answer you don't. Those two planets, they've spent a millennia trying to work out how to do it.
- Graham O'Brien: Well, I think the motivational speech needs a bit of work, Doc, if you don't mind. Also, a plan, by the way.
- The Doctor: I've got plans crashing through my brain all the time. You want a plan? Come to me. Identifying which plan's gonna work, that's the tricky bit.