"I am with them. Same group, different department. Think of me as a sort of middle man. And the name is Justin."
- – Justin
Justin was a human agent of the Shadows, one of the highest "ranked" servants working for them.
Justin was a self-described "middle-man," likening himself to the people who "draw up the borders, control the currency, decide all the matters that happen transparently around us." After being recruited by the Shadows, he was relocated to Z'ha'dum and coordinated the logistical and practical details of the efforts of the Shadows' human agents.
Following the Battle of Sector 83, Justin sent Anna Sheridan, who had been "reprogrammed" by the Shadows into a loyal servant, to Babylon 5 to bring back John Sheridan, Justin's "opposite number" leading the Army of Light. The Shadows knew that if they killed Sheridan it would only make him a martyr to his cause, so they hoped to turn him to their own purposes.
He was presumed killed when Sheridan destroyed the Shadow capital on Z'ha'dum by detonating a thermonuclear explosion.
- Justin's sole appearance was in the episode "Z'ha'dum."
- According to series creator J. Michael Straczynski, Justin was not a crew member of the IPX spacecraft Icarus and arrived on the planet at a different time than they did.
- Justin is likely the so-called "man in between" mentioned in one of Sheridan's dreams (sent by Kosh) in the episode "All Alone in the Night." However, another possible candidate would be Lorien.
- Justin is intended to be Sheridan's "equal and opposite." Rather than a popular war hero from the front lines, he is a quiet man no one knows of who works behind the scenes. Both men enjoy a fondness for tea which they claim helps them sleep.