Here is what the page “Babylon 5 Reboot Casting: 8 Main Characters and the Modern Actors Who Could Replace the Or” contains. The Babylon 5 reboot faces a daunting challenge: recasting eight iconic roles made famous by the original 1990s series. Michael Straczynski at the helm, the new version must find actors who can honor the legacy while bringing fresh energy. Key roles include Commander Jeffrey Sinclair, the station's first commander originally played by Michael O'Hare; Security Chief Michael Garibaldi, portrayed by Jerry Doyle; Commander Susan Ivanova, played by Claudia Christian.
Also central are Ambassador Delenn of the Minbari, played by Mira Furlan; Ambassador G'Kar of the Narn, played by Andreas Katsulas; and Ambassador Londo Mollari of the Centauri, played by Peter Jurasik. Stephen Franklin, played by Richard Biggs, and telepath Talia Winters, played by Andrea Thompson. For the complete material, the listing points back to the source inside the network.