Anna Sheridan was John Sheridan's wife. She served as a crew member aboard the "Icarus", an Interplanetary Expeditions ship that set down on Z'ha'dum approximately two years before John Sheridan's assignment to Babylon 5. The "Icarus" and all hands were believed lost at some point during the expedition. In fact, the crew came into contact with the awakening Shadows and at least some crew were "changed" to suit the Shadows' needs. John Sheridan had lived with guilt over his wife's death as he believed himself partly responsible for her accepting a position on the "Icarus". In 2260, Anna (or her body under Shadow control), who had up until that point been used as the living control center of a Shadow vessel, was sent by the Shadows to Babylon 5 to lure John Sheridan to Z'ha'dum. Both traveled there in the "White Star". Anna dies (again) at Z'ha'dum when John Sheridan remotely activated the "White Star", causing it to fall toward the Shadow compound, and then detonating two high-yield nuclear weapons (500 megatons each) on board the ship. David Sheridan was the son of the Interstellar Alliance President John Sheridan and his wife Delenn. Sheridan was named after his paternal grandfather David Sheridan. He did not appear in any of the "Babylon 5" television episodes or made-for-television movies, but was featured in "", the third novel in the canon Legions of Fire novel series. His existence was first established in the two-part "War Without End" episode from the third season of Babylon 5 when his father traveled forward in time briefly and was told by Delenn that they had a son. This foreshadowing served to alter the tone of the relationship between Sheridan and Delenn, which was at that point still developing. It also served as part of the motivation for Sheridan's actions at the end of the third season, which in turn resolved many of the major plotlines thus far in the show. The final episode of season four, "The Deconstruction of Falling Stars" contains a reference to an incident involving David, in a segment set one hundred years later, but does not detail the nature of this. Towards the end of the fifth and final season of Babylon 5, Delenn finally became pregnant with him. His birth takes place off-camera between the penultimate episode, "Objects at Rest", and the final episode, "Sleeping in Light", set some 19 years later.