First episode directed by Trek regular David Carson. He previously worked with Marina Sirtis on one of the many Sherlock Holmes episodes he directed.
	In an early draft, Geordi was joined with Troi on the surface who would incapacitate the Romulan.
	Michael Dorn and other writing staff members objected to the idea that Worf wouldn't give blood to the Romulan but Michael Piller overruled.
	First appearance of Andreas Katsulas as Tomalak. He also stars in "The Defector", "Future Imperfect" and "All Good Things...".
	Galorndon Core would be mentioned again as a strategic point in "Unification, Part 2".
	First appearance of the TNG palm beacons. They were powered by off-camera sources and required cables to be run up the actors sleeves.

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