The teddy bear that Radu finds in Who Goes Where (1996) is the very same one that was used in an episode of Babylon 5 (1993) written by Space Cases creator Peter David. It's a running gag between David and Babylon 5 creator J. Michael Straczynski. David's wife gave the bear to JMS, who hates "cute" things. In There All the Honor Lies (1995), the character of Sheridan tosses it out of an airlock into space (for the same reason). Peter David took revenge in defense of his wife's honor. When Radu brings in the bear, Rosie says, "What kind of dope would toss a perfectly good Earth bear into space?" Later, we find out that the bear was left by an evil race called the "Straczyn." JMS has reportedly sworn vengeance.
Walter Jones came onto the show two years after leaving Fox Broadcasting Company's Japanese-based superhero series Power Rangers (1993).
Suzee is said to be from another dimension and lives on a planet called Yensid (Disney spelled backwards).
Co-creator Bill Mumy's 9-year-old son was obsessed with Mighty Morphin Power Rangers (1993), so he cast Walter Emanuel Jones (the original black Power Ranger) as Harlan Band partly to impress him.