This episode was originally intended to be a cost-cutting "bottle show". It wound up being one of the most expensive episodes of the season.
This episode was nominated for an Emmy Award for Outstanding Individual Achievement in Sound Mixing for a Drama Series.
First appearance by Susanna Thompson who later starred as The Borg Queen in Dark Frontier (1999) and Unimatrix Zero (2000).
All three of the guest actors playing Romulans: Thomas Kopache, Susanna Thompson and Brian Cousins would go on to play numerous other roles in various Star Trek episodes and films.
Thomas Kopache is one of only a few actors to appear on all four of the Star Trek TV spin-off series and is one of only five actors to play seven or more different characters in Star Trek, the others being Jeffrey Combs, Randy Oglesby, J.G. Hertzler, and Vaughn Armstrong.