The Judge is named "Ramon Estevez". This is the real name of the actor Martin Sheen.
Charlie O'Connell, younger brother of Jerry O'Connell played 2 minor roles in seasons 2 and 3,(S2,13 & S3,7) before being cast as Collin Mallory, Quinn's brother in season 4.
On Nueva España, much of North America was colonised by Spain in the 16th Century. The North American continent consists of Nueva España, Mexico and Canada in 1996. As their country is severely impoverished, many Canadians illegally cross the border into Nueva España in search of jobs and a better standard of living. The immigration agency La Migra seeks to expel the Canadians, who are referred to as "furbacks," from Nueva España.
On Lions World, Quinn Mallory and his family moved when he was in the tenth grade as his father Michael Mallory got another job. In 1996, Quinn was doing a PhD in astrophysics in Gonzaga University in Washington.
While being deported, Wade (Sabrina Lloyd) says that she doesn't want to spend the rest of her life in Canada (where seasons 1, 2, 4 and 5 were filmed). Ironically, this would be the last episode of Sliders Lloyd filmed in Canada. Season 3 (Lloyd's last as a series regular) was filmed in California.