Season 1 of Babylon 5 ran from January 26, 1994 until October 3, 1994.
The first season of Babylon 5 featured:
| Episode | Title | Description | Air Date |
| S1, Ep1 | Midnight on the Firing Line | A Centauri colony is attacked by the Narn, while Raiders attack transport ships. And Talia Winters arrives at the station as the new liaison to the Psi Corp. | 26 Jan. 1994 |
| S1, Ep2 | Soul Hunter | Delenn's life is placed in danger when a mysterious alien arrives on the station. | 2 Feb. 1994 |
| S1, Ep3 | Born to the Purple | Garibaldi investigates communications being sent over a restricted channel. Londo falls in love with a beautiful slave, whose owner uses her to steal sensitive information from the ambassador. | 9 Feb. 1994 |
| S1, Ep4 | Infection | When a biological weapon wreaks havoc on the station Sinclair must put his life in danger to try and stop it. | 16 Feb. 1994 |
| S1, Ep5 | The Parliament of Dreams | A week long cultural festival takes place on Babylon 5. G'Kar receives a death threat. Sinclair's old girlfriend, Catherine Sakai, arrives on the station. | 23 Feb. 1994 |
| S1, Ep6 | Mind War | Catherine is warned not to survey a sector of space by G'Kar. Psi-Cops arrive at the station to arrest Ms. Winter's former Psi Corps instructor. | 2 Mar. 1994 |
| S1, Ep7 | The War Prayer | A radical pro-Earth nationalist group attacks a Minbari poet. Londo's help is enlisted by two Centauri lovers. | 9 Mar. 1994 |
| S1, Ep8 | And the Sky Full of Stars | Sinclair is kidnapped by a group determined to learn what happened when he disappeared in the Battle of the Line. | 16 Mar. 1994 |
| S1, Ep9 | Deathwalker | A war criminal, the last of the notorious Dilgars scientist, is discovered on B5. And what they are carrying may change everything. | 20 Apr. 1994 |
| S1, Ep10 | Believers | A family refuses surgery in the attempt to save the life of their dying child. | 27 Apr. 1994 |
| S1, Ep11 | Survivors | Garibaldi is accused of an accident aboard B5 which effects his stability. | 4 May 1994 |
| S1, Ep12 | By Any Means Necessary | G'Kar attempts to hold a religious ceremony for the Narn aboard B5, however Londo holds the plant he needs and won't relinquish it. The station's dock workers organize an illegal strike. | 11 May 1994 |
| S1, Ep13 | Signs and Portents | Londo obtains a priceless Centauri artifact and is visited by a stranger as are all of the other alien ambassador asking only one question. | 18 May 1994 |
| S1, Ep14 | TKO | B5 is host to Mutai, an alien fighting match. A disgraced earth boxer comes to Babylon 5 with the hopes of regaining his former status. Meanwhile, an old friend visits Ivanova as she mourns the loss of her father. | 25 May 1994 |
| S1, Ep15 | Grail | A strange man in search for the Holy Grail arrives on the station. Garibaldi suspects Ambassador Kosh may be behind a string of attacks on the station. | 6 Jul. 1994 |
| S1, Ep16 | Eyes | Sinclair and his command staff are investigated by a Colonel investigates for recent station actions. | 13 Jul. 1994 |
| S1, Ep17 | Legacies | A Minbari military leader's dead body disappears on the station and the Warrior Caste is determined to recover it at any cost. | 20 Jul. 1994 |
| S1, Ep18 | A Voice in the Wilderness: Part 1 | Delenn's old friend arrives on the station just as an extinct civilization is found on the planet that Babylon 5 orbits. | 27 Jul. 1994 |
| S1, Ep19 | A Voice in the Wilderness: Part 2 | Conflict arises when a captain for Earthforce and an alien race both lay claim to the planet below. | 3 Aug. 1994 |
| S1, Ep20 | Babylon Squared | B5's immediate predecessor, Babylon 4, suddenly reappears leading to a hasty rescue effort to rescue B4's crew after it had mysteriously vanished years ago. | 10 Aug. 1994 |
| S1, Ep21 | The Quality of Mercy | Talia is asked to enter the mind of a convicted murderer. Dr. Franklin goes to Downbelow to investigate a doctor who has been healing people with an alien device. | 17 Aug. 1994 |
| S1, Ep22 | Chrysalis | Garibaldi makes a terrible discovery while he investigates a death on the station but before he can act he is ambushed and left for dead. | 26 Oct. 1994 |
Season 2 of Babylon 5 ran from November 2, 1994 until August 15, 1995.
The main cast of season 2 featured:
| Episode | Title | Description | Air Date |
| S2, Ep1 | Points of Departure | Captain John Sheridan appears assuming command of B5. A renegade Minbari ship reappears and attempts to reignite the war. He learns the closely kept secret why the Minbari inexplicably surrendered to Earth in the Earth-Minbari war. | 2 Nov. 1994 |
| S2, Ep2 | Revelations | G'Kar brings warning that the old enemy has returned. Dr. Franklin tries to bring Garibaldi out from his coma. Delenn emerges from her stasis. | 9 Nov. 1994 |
| S2, Ep3 | The Geometry of Shadows | Ivanova deals with a Drazi strange political custom that occurs once every 5 years. A secretive group of Techno-mages arrive on the station. | 16 Nov. 1994 |
| S2, Ep4 | A Distant Star | Captain Sheridan's is reunited with his former commanding officer as he stops at the station for supplies. A disaster ensues in Hyperspace. | 23 Nov. 1994 |
| S2, Ep5 | The Long Dark | A ship is found adrift in space near the station placing the inhabitants on the station at risk when a deadly force awakens. | 30 Nov. 1994 |
| S2, Ep6 | Spider in the Web | A Free Mars member murders one of Talia Winter's clients and now he has has set his sights on her. | 7 Dec. 1994 |
| S2, Ep7 | Soul Mates | Londo's three wives are summoned to the station. Talia's ex-husband a former telepath visits the station. While Delenn has a bad hair day. | 14 Dec. 1994 |
| S2, Ep8 | A Race Through Dark Places | Bester enlisted the help of Talia as he investigates an "underground railroad" of telepaths which have escaped the Psi-corp. | 25 Jan. 1995 |
| S2, Ep9 | The Coming of Shadows | The emperor of Centauri Prime visits the station. G'Kar devises a plot toassassinate him. Lord Refa and Londo conspire to expand their power on Centauri Prime. | 1 Feb. 1995 |
| S2, Ep10 | GROPOS | Dr. Franklin's father is assembled at B5, leading to some friction. While B5 is over ran by Ground Pounders, Earth Force ground troops. | 8 Feb. 1995 |
| S2, Ep11 | All Alone in the Night | Sheridan is kidnapped. General Hague makes an unofficial visit to the station. | 15 Feb. 1995 |
| S2, Ep12 | Acts of Sacrifice | The Narn/Centauri conflict heats up. G'Kar asks Sheridan for Earth Force help in the Narn/Centauri war. | 22 Feb. 1995 |
| S2, Ep13 | Hunter, Prey | A fugitive carrying secrets about what happened to President Santiago flees to Babylon 5. | 1 Mar. 1995 |
| S2, Ep14 | There All the Honor Lies | Sheridan is forced to kill a Minbari warrior, while a Minbari witness claims it was unprovoked. | 26 Apr. 1995 |
| S2, Ep15 | And Now for a Word | ISN arrives on the station. | 3 May 1995 |
| S2, Ep16 | In the Shadow of Z'ha'dum | Nightwatch, a new agency on Earth is trying to recruit new personnel. Sheridan discovers that a man named Morden may have been involved with his wife's death. | 10 May 1995 |
| S2, Ep17 | Knives | Sheridan is possessed by a strange alien entity. One of Londo's old friend asks for help. | 17 May 1995 |
| S2, Ep18 | Confessions and Lamentations | A plague spreads on the station treatening to destroy the Markab and everyone else. Dr. Franklin tries desperately to find a cure for the disease. | 24 May 1995 |
| S2, Ep19 | Divided Loyalties | Lyta Alexander returns to the station. One of the command staff is an undercover operative. | 11 Oct. 1995 |
| S2, Ep20 | The Long, Twilight Struggle | The Narn/Centauri War peaks after a devastating turn of events. | 18 Oct. 1995 |
| S2, Ep21 | Comes the Inquisitor | Kosh tests Delenn's allegiance with the help of an inquisitor. G'Kar attempts to bring his people together on Babylon 5. | 25 Oct. 1995 |
| S2, Ep22 | The Fall of Night | Earth government enters into a non-aggression treaty with the Centauri as the Centauri/Narn war escalates. Keffer discovers a dangerous secret in Hyperspace. | 1 Nov. 1995 |
Season 3 of Babylon 5 ran from November 6, 1995 until September 22, 1996.
The main cast for the third season of Babylon 5 featured:
| Episode | Title | Description | Air Date |
| S3, Ep1 | Matters of Honor | A small colony home to a Ranger training base is attacked by the Shadows. Marcus Cole goes to Babylon 5 for help causing Sheridan and Delenn to embark on a mission in the White Star to help the Rangers. Meanwhile Earth force sends a representative to find out more about the ship that destroyed Lt. Keffer. | 6 Nov. 1995 |
| S3, Ep2 | Convictions | A mad bomber is causing havoc on Babylon 5. Meanwhile G'Kar and Londo are trapped in an elevator. Londo wants to work together so they can escape, but G'Kar refuses to aide his nemesis. Sheridan and Garibaldi are forced to negotiate with the bomber when he threatens to detonate the station, if his demands are not met. | 13 Nov. 1995 |
| S3, Ep3 | A Day in the Strife | Sheridan and Ivanova must deal with a dispute with the dock worker's guild. Garibaldi talks to Franklin about his stim use-age. A probe arrives, and gives the station a test. | 20 Nov. 1995 |
| S3, Ep4 | Passing Through Gethsemane | Brother Edward, a monk with Brother Theo visits with Delenn to discuss religion. Soon Brother Edward begins to hear voices. They discover that Edward is experiencing repressed memories, someone is forcing him to relive past moments. Kosh's ship arrives at B5 with Lyta Alexander after her trip to the Vorlon home world. | 27 Nov. 1995 |
| S3, Ep5 | Voices of Authority | Sheridan must dealing with the new EarthGov Political Officer stationed on Babylon 5 and Ivonova visits the planet below Babylon 5 in search of the "first ones". | 29 Jan. 1996 |
| S3, Ep6 | Dust to Dust | Bester returns to Babylon 5 on a mission to stop the flow of Dust, a powerful new drug which can temporarily unlock telepathic powers in humans. Now Captain Sheridan and the crew must devise a means to keep Bester from reading their minds and uncovering their secret Shadow war preparations. | 5 Feb. 1996 |
| S3, Ep7 | Exogenesis | Marcus enlists Franklin's help to investigate a series of deaths caused by a mysterious parasite. | 12 Feb. 1996 |
| S3, Ep8 | Messages from Earth | Sheridan discovers a terrifying new alliance has been made between the Shadows and another race. | 19 Feb. 1996 |
| S3, Ep9 | Point of No Return | Nightwatch takes control of Babylon 5 by undermining security. Londo arranges for the widow of the former Centauri Emperor to visit Babylon 5. He hopes that she will give him a vision. | 26 Feb. 1996 |
| S3, Ep10 | Severed Dreams | Captain Sheridan declares Babylon 5 independent when President Clark escalates his brutal repression of the people of Earth Alliance. | 1 Apr. 1996 |
| S3, Ep11 | Ceremonies of Light and Dark | After severing ties with Earth, command staff must deal with some unexpected issues that arise from their succession. Secrets are revealed, and hidden dangers are revealed as a group loyal to Clark takes Delenn hostage. | 8 Apr. 1996 |
| S3, Ep12 | Sic Transit Vir | Vir returns to Babylon 5, and meets his fiancée. As he and his bride to be get to know each other, a Narn attacks, and takes a blood oath to kill them. The command staff must figure out why someone would want to kill Vir. | 15 Apr. 1996 |
| S3, Ep13 | A Late Delivery from Avalon | A strange man dressed in medieval armor arrives on the station, claiming to be King Arthur. | 22 Apr. 1996 |
| S3, Ep14 | Ship of Tears | Bester arrives in a Black Omega Starfury and requests help to track down weapons being smuggled through hyper space. The weapons turn out to be telepaths captured by the Shadows. They discover why the Shadows wanted telepaths for their war. | 29 Apr. 1996 |
| S3, Ep15 | Interludes and Examinations | The alliance asks Sheridan to prove he has forces equal to the Shadows before they will commit. Londo waits anxiously for Adira's return. Sheridan calls on Kosh for assistance, but Kosh is resistant at first, Kosh finally agrees to help Sheridan, and later pays the price for his involvement. | 6 May 1996 |
| S3, Ep16 | War Without End: Part One | Sinclair returns to Babylon 5 with a mission. This is a continuation of First Season's Babylon Squared. While a surprise about the future are revealed. | 13 May 1996 |
| S3, Ep17 | War Without End: Part Two | The mission to send Babylon 4 where it's needed continues. Sheridan sees what will happen to Centauri Prime in the future. Sinclair's destiny is revealed. Zathras explains who the "One" is. | 20 May 1996 |
| S3, Ep18 | Walkabout | Kosh's replacement arrives on the station. Dr. Franklin falls in love with a singer during his walk about. | 30 Sep. 1996 |
| S3, Ep19 | Grey 17 Is Missing | With Sinclair gone, the Rangers need a new leader, and everyone looks to Delenn. Marcus must stop Neroon from interfering in the ceremony at any cost. Meanwhile Garibaldi investigates the death of a maintenance worker and a mysterious cult on a section that "vanished." | 7 Oct. 1996 |
| S3, Ep20 | And the Rock Cried Out, No Hiding Place | Religious leaders gather on Babylon 5 bringing news of events on Earth. G'Kar is captured by Refa, this will lead to a final confrontation with Londo. Sheridan and Delenn figure out where the Shadows will strike next. | 14 Oct. 1996 |
| S3, Ep21 | Shadow Dancing | Delenn asks the League for ships for a mission, she won't tell them where or when the mission will take place. The fleet manages to prevent an attack by a Shadow Fleet. An unexpected visitor from Sheridan's past arrives. | 21 Oct. 1996 |
| S3, Ep22 | Z'ha'dum | Sheridan goes to Z'Ha'Dum, to try and prevent the fall of Centauri Prime, and end the Shadow War. | 28 Oct. 1996 |
Season 4 of Babylon 5 ran from November 4, 1996 until October 27, 1997.
The forth season of the series featured:
Season 5 of Babylon 5 ran from January 21, 1998 until November 25, 1998.
The final season of the show featured a line-up that had remained relatively unchanged since season two. The line-up now featured: