David McCallum credited as playing...
Donald Mallard
- Dr. Donald Mallard: [after Palmer finds something on the victim] Well let's see what it is.
- Jimmy Palmer: I've prepared your instruments for you.
- Dr. Donald Mallard: No, no, no. This is all *yours*, Mr. Palmer. Allow me to assist.
- Dr. Donald Mallard: It's a condition called pink tooth. It's caused by the use of an arsenic compound in the mortification of dental pulp prior to endodontic obturation.
- Special Agent Jethro Gibbs: Ah geez, Duck, come on. English.
- Dr. Donald Mallard: Suffice to say, it's a therapy unique to Russia during the mid-20th century. Mr. Bascom may have immigrated from Canada, but I'll stake my reputation he was born in the Soviet Union.