- Prof. Alvah Jesper: I am scared stiff. For the first time thousands of our fine scientists are working together, and to make what?... A bomb! But who was willing to finance before the war, to wipe out tuberculosis. And when are we going to be given a billion dollars to wipe out cancer? I tell you we could do it in one year!
- Prof. Alvah Jesper: There was a time when I thought I wanted to be some kind of secret agent. I gave it up when I was eight.
- Prof. Alvah Jesper: Dr. Katerin Lodor, one of the great ones. Used to be my scientific pinup girl before Hungary sold out to the Nazis.
- Prof. Alvah Jesper: What's that?
- Gina: An American Cowboy song. Don't look so funny. One of your shot-down fliers from New Arizona taught it to me.
- Prof. Alvah Jesper: New Mexico.
- Gina: New Arizona.
- Prof. Alvah Jesper: Okay. New Arizona.
- [first lines]
- Resistance worker: C'est moi.
- Resistance radio operator: Thought you'd never show up.
- Col. Walsh: I'm in the OSS.
- Prof. Alvah Jesper: Never heard of it.
- Col. Walsh: Now that's fine. We're not supposed to get publicity. The Office of Strategic Services, around Washington we're known as the Cloak and Dagger boys.
- Gina: The American likes cats, hmm? Only you are in Europe now. Here you find cats in butcher shops. This one's been lucky. But by tomorrow maybe, plop! into somebody's stew pot.