Executive Producer J. Michael Straczynski was dissatisfied with the prop used as The Eye. He felt it did not look enough like a priceless heirloom.
When the Centauri Seer collapses upon having her vision in the arrivals hall, the display behind her is listing events for that day on Babylon 5 including a 'Rolling Stones Farewell Concert' in the 'Presley Arena'!
Throughout his appearances in the series, Morden wears a black stone on a silver chain around his neck. According to the Babylon 5 novel, The Shadow Within, the stone was a gift from Morden's wife, who was lost in a hyperspace accident. The Shadows bought Morden's cooperation by promising to rescue his wife's damaged ship in hyperspace.
Lord Kiro's hairstyle was actually a mistake. Among the Centauri, one's social status is determined by the length and styling of the hair. Upon hearing this, the hairdresser made the wig the greatest length he could. Later wigs used more styling and finish rather than size.
Actor Ed Wasser had previously worked on the Babylon 5 set as a prompter, calling out lines to forgetful actors, and also appeared in Babylon 5: The Gathering (1993) as 'Guerra', an officer who worked in C&C.