Ben Browder credited as playing...
Isaac
- [discussing why someone wants to kill The Doctor in a town that they've only just arrived at.]
- Amy Pond: What does he want? Has he issued some kind of demand?
- Isaac: Says he wants us to give him the alien doctor.
- Amy Pond: [to The Doctor] But that's you. Why would he want to kill you? Unless he's met you.
- [Amy has just accidentally shot a gun twice while waving it about as she's talking]
- Isaac: Everyone who isn't an American, drop your gun!
- Rory Williams: So, what do we do with Jex?
- Isaac: [frowns] What do we "do with" him?
- Rory Williams: Yeah. I mean, he's a war criminal.
- Isaac: No, he's the guy who saved the town from cholera. The guy who gave us heat and light.
- Amy Pond: Look, Jex may be a criminal and, yeah, kinda creepy...
- Kahler-Jex: And still in the room.
- The Doctor: What happens if someone crosses the line?
- Isaac: [throws him a hat with a bullet hole through it]
- The Doctor: Well, not a very good shot, then.
- Isaac: He was aiming for the hat.
- The Doctor: [Incredulous] He shoots people's hats?