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 June Lockhart Guest Star Kate McNeil Guest Star Mark Rolston Guest Star Damian London Guest Star Lorraine Senna Ferrara Director J. Michael Straczynski Writer