PC Andy: She's anti terrorist? I wouldn't mind being Uncle Terrorist.
Rhys: I don't question you defend the world against extra-terrestrial invasion, you don't question my knowledge of the lorry industry.
Lois Habiba: I didn't sign the Official Secrets Act to cover up murder, but then I didn't take a job to commit treason on my second day
Lois Habiba: If you're the bad guys then why doesn't it say that on your file? And if you're the good guys then who am I working for? And why do they want you dead?
Jack: Told you I'd be back.
Ianto: With a little help from us.
Mr. Dekker: The whole room is laid out to 456 instructions. A sort of ambassadorial room, I'd say, or a throne room. Who knows? Maybe a slaughterhouse.