Michelle Ryan credited as playing...
Christina
- The Doctor: I come from a race of people called Time Lords.
- Christina: You're an alien?
- The Doctor: Yeah, but you don't have to kiss me either.
- Christina: You look human.
- The Doctor: You look Time Lord.
- Christina: It's Christina Da Souza. To be precise it's Lady Christina Da Souza.
- The Doctor: Oh, that's handy because I'm a lord.
- Christina: Seriously, lord of where?
- The Doctor: It's quite a big estate.
- The Doctor: I need something non-corrosive. Something malleable. Something ductile. Something... gold.
- Christina: Oh no you don't.
- The Doctor: Christina, what is it worth now?
- Barclay: Hey hey, use this.
- [hands over watch]
- The Doctor: I said gold.
- Barclay: It is gold.
- The Doctor: Oh, they saw you coming.