In the pub is a photograph of Charles Stewart Parnell, an Irish member of the British Parliament in the 1880s, who campaigned for law reforms and civil rights.
The wooden sign advertising Sullivan's Pub includes a harp, the symbol of Ireland. Because the harp is also used by Guinness, some viewers mistake the sign for a Guinness advertisement.
The episode was filmed on location at Universal Studios in California on a redress of their "Little Europe" backlot set, where the exteriors of Sainte Claire were also filmed for "The Killing Game" serial. Some of the buildings can be seen in both episodes.
This episode was originally titled "Safe Harbor".
This was the first episode of Star Trek to originally air in the year 2000.