Editing Babylon 5 (section)

=== Regular cast ===
''Babylon 5'' featured an [[ensemble cast]] which changed over the course of the show's run:
* [[Michael O'Hare]] as Commander (later Ambassador) [[Jeffrey Sinclair]] (season 1; guest seasons 2–3): The first commander of ''Babylon 5'', later appointed Earth's ambassador to Minbar.
* [[Bruce Boxleitner]] as Captain (later President) [[John Sheridan (Babylon 5)|John Sheridan]] (seasons 2–5): Sinclair's replacement on ''Babylon 5'' after his reassignment and a central figure of several prophecies within the Shadow war. Becomes president of the newly formed Interstellar Alliance in season 5.
* [[Claudia Christian]] as Lt. Commander (later promoted to Commander) [[Susan Ivanova]] (seasons 1–4, guest season 5): Second in command of ''Babylon 5''.
* [[Jerry Doyle]] as [[Michael Garibaldi]]: ''Babylon 5''{{'}}s Chief of Security for seasons 1-4; leads the covert intelligence arm of the Interstellar Alliance in season 5.
* [[Mira Furlan]] as [[Delenn]]: The Minbari ambassador to ''Babylon 5''. Born Minbari, she uses a special artifact at the start of the second season to become a Minbari-human hybrid, and later marries Captain Sheridan.
* [[Richard Biggs]] as Doctor [[Stephen Franklin (Babylon 5)|Stephen Franklin]]: ''Babylon 5''{{'}}s chief medical officer.
* [[Andrea Thompson]] as [[Talia Winters]] (season 1–2): A commercial Psi-Corps telepath who works aboard the station.
* [[Stephen Furst]] as [[Vir Cotto]]: Diplomatic aide to Centauri Ambassador Londo Mollari.
* [[Bill Mumy]] as [[Lennier]]: Diplomatic aide to Minbari Ambassador Delenn.
* [[Tracy Scoggins]] as Captain [[Elizabeth Lochley]] (season 5): ''Babylon 5''{{'}}s station commander following Ivanova's departure and Sheridan's resignation.
* [[Jason Carter (actor)|Jason Carter]] as [[Marcus Cole (Babylon 5)|Marcus Cole]] (seasons 3–4): A Ranger, one of a group of covert agents who fight against the Shadows.
* [[Julie Caitlin Brown|Caitlin Brown]] (season 1, guest season 5) and [[Mary Kay Adams]] (season 2) as [[Na'Toth]]: Diplomatic aide to Narn Ambassador G'Kar.
* [[Robert Rusler]] as Warren Keffer (season 2): Commander of the Zeta Wing, one of ''Babylon 5''{{'}}s small fighter wings.
* [[Jeff Conaway]] as [[Zack Allan]] (guest season 2, main seasons 3–5): A sergeant in the ''Babylon 5'' security force, replaces Garibaldi as Chief of Security by season 5.
* [[Patricia Tallman]] as [[Lyta Alexander]] (original TV movie, guest seasons 2–3, main seasons 4–5): A commercial Psi-Corps telepath who takes over for Talia when she leaves the station.
* [[Andreas Katsulas]] as [[G'Kar]]: The Narn ambassador to ''Babylon 5.''
* [[Peter Jurasik]] as [[Londo Mollari]]: The Centauri ambassador to ''Babylon 5.''