The ship Sheridan uses to get to the Rim appears to be a new class of White Star. The ship seems fully automated and can function with one pilot simply giving voice commands.
When Lennier is backing away from Sheridan, he bumps into the wall, which shakes.
In the Season 4 episode "Endgame" it is mentioned that fighting in Hyper-space always ends badly for both sides, due to the high energy. But in this episode we see Starfuries and Centauri ship firing in Hyper-space with no ill effects.
Strangely, throughout the episode Walter Koenig never takes both gloves off, always leaving the glove in his left hand even when not wearing his uniform.
Bester says to the PSI Cop intern "You just might be PsiCorp material after all" after she kills her first mundane. Surely he means "PSI Cop material" as he has always stated that all telepaths are part of PsiCorp?
Ta'Lon tells G'Kar that the Narns have only learned one thing in the past 100 years, yet he lists off two: how to hate and to fight.
Revealing Mistake: When Garibaldi and the Drazi are fighting in his room, the balcony wall wobbles whenever they hit it.
Bester tells Garibaldi that he has implanted him with two of Asimov's laws: "You will not harm me, or allow by inaction to let any harm come to me." In fact, this is only one law, as Asimov's laws are:
1. A robot may not injure a human being or, through inaction, allow a human being to come to harm. 2. A robot must obey orders given to it by human beings except where such orders would conflict with the First Law. 3. A robot must protect its own existence as long as such protection does not conflict with the First or Second Law.
Continuity: Byron has an arm injured badly and can barely lift it. But then it is miraculously alright, and he uses it to tidy up his hair.
When talking privately with the Drazi, Brakiri and Gaim Ambassadors, there's one shot of Sheridan and Delenn in which one of the lights of the wall beside Sheridan goes off for a few seconds.
Continuity: Some of the telepaths shown siding with Byron in this episode were among the group who had split from his non-violent ideology in the previous episode.
When Sheridan and Garibaldi are discussing Byron's threat to the council, Delenn is shown reading his manifest over and over. However, in several moments of the scene, the camera angle allows us to see that there are only white pages in the manifest.
Revealing Mistakes: A microphone is visible when Londo speaks to the Centauri Regent. The microphone is visible at the far right side of the screen between the edge of the throne and frame. As the regent moves out from behind the throne, the microphone is clearly being pulled back.
Marie Marshall (Dodger), Fabiana Udenio (Adira Tyree) and Ed Wasser (Morden) were all credited in the closing credits as "Special Appearance by".
Captain Lochley had supposedly read all the reports by then-Captain Sheridan during his command of Babylon 5. She should have recognized the name "Kosh" as being Ambassador Kosh of the Vorlon Empire - a pivotal character during the station's most turbulent times.
Crew Visible: In one scene, where Mr. Morden disappered when Lennier looked back, you can clearly see someone with a sport shirt walking into the set. On the DVD, this appears to have been minimally edited. The toe of a shoe appears for a tiny fraction of a second, but that is all.
Plot Hole: The Babylon 5 telepath community is poor. Hence the dingy quarters, and Lyta stealing medicine for them. However, at the end, they can somehow afford a number of candles to decorate their dingy quarters.
In "A Late Delivery from Avalon" (from season 3), Marcus tells Dr. Franklin he had learned about the application of terror from the Minbari, but he refused to speak about it. In this episode, we actually see some aspect of that training.
In the final scene, when Dr. Franklin is identifying the fallen soldiers, he presses some buttons on his portable device. As he closes the eyes of the third person on the deck, the screen lights of the device turn off before he hits the last button.
Effects glitch: When Lyta is in the dying ranger's mind and he's walking to the "door", his shadow is seen on the equipment and the doorframe to the left of him. When the camera cuts to Lyta and then back to him, the shadow is gone.