Michael O'Hare Cmdr. Jeffrey Sinclair Actor Claudia Christian Lt. Cmdr. Susan Ivanova Actor Jerry Doyle Security Chief Michael Garibaldi Actor Mira Furlan Delenn Actor Richard Biggs Dr. Stephen Franklin Actor Andrea Thompson Talia Winters Actor Stephen Furst Vir Cotto Actor Bill Mumy Lennier Actor Julie Caitlin Brown Na'Toth Actor Andreas Katsulas Ambassador G'Kar Actor Peter Jurasik Londo Mollari Actor David McCallum Guest Star Marshall R. Teague Guest Star Patricia Healy Guest Star Sav Farrow Guest Star Richard Compton Director J. Michael Straczynski Writer