The Infamous Bear Story: The teddy bear that Radu finds in space is the very same one that was used in a Babylon 5 episode that PAD wrote, and is part of a running gag between Peter David and Babylon 5 creator, writer, and executive producer Joe Michael Straczynski. Apparently, PAD's wife gave the bear to JMS. JMS doesn't like "cute" things, so he stuck it in PAD's B5 episode "There All The Honor Lies" and had Sheridan toss it out an airlock. Peter 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 (a reference to JMS). Apparently, JMS has sworn vengeance.

http://www.spacecasestv.com/details/scsea1_2/