David McCallum credited as playing...
Donald Mallard
- Donald Mallard: No, that can't be right.
- Leroy Jethro Gibbs: [entering] What can't be right?
- Donald Mallard: This man's core temperature is 62 below zero.
- Leroy Jethro Gibbs: How, Duck?
- Donald Mallard: Well, I don't know.
- Leroy Jethro Gibbs: What happened to him?
- Donald Mallard: Well, I wouldn't even venture a guess until I do the autopsy, and I can't begin that until he comes to room temperature. Not hours, Jethro. Days.
- Leroy Jethro Gibbs: Oh, come on, Duck.
- Donald Mallard: Rapid defrosting would cause his skin to decompose while his inner organs would stay frozen. It would seriously compromise the results. No, we wait.