David McCallum credited as playing...
Donald Mallard
- Dr. Donald Mallard: I've been traveling to crime scenes for a great many years, but I can say with complete confidence this is the shortest commute I have ever had.
- Jimmy Palmer: And one of the first times I didn't get us lost.
- Dr. Donald Mallard: True.
- Officer Ziva David: [venting] I'm being treated like a leopard!
- Dr. Donald Mallard: I believe the phrase is, "Like a leper."
- Jimmy Palmer: He's so young.
- Dr. Donald Mallard: Yes, my father used to say: "We must live for today, because yesterday is gone and tomorrow may never come."
- Jimmy Palmer: You know, that's really beautiful, doctor.
- Dr. Donald Mallard: Yes, unfortunately, he never practised what he preached. He was always a bit of a penny-pincher. A Papa Scrooge, if you like. That was one reason that he and my mother went their separate ways.
- Jimmy Palmer: Yeah, most people don't know this, but financial disputes are the second leading cause of divorce.
- Dr. Donald Mallard: Really? What's number one?
- Special Agent Leroy Jethro Gibbs: Marriage.