Bruce Boxleitner Commander John Sheridan Actor Claudia Christian Cmdr. Susan Ivanova Actor Jerry Doyle Security Chief Michael Garibaldi Actor Mira Furlan Delenn Actor Richard Biggs Dr. Stephen Franklin Actor Bill Mumy Lennier Actor Jason Carter Marcus Cole Actor Stephen Furst Vir Cotto Actor Jeff Conaway Zack Allan Actor Peter Jurasik Londo Mollari Actor Andreas Katsulas Ambassador G'Kar Actor John Schuck Guest Star Shari Shattuck Guest Star James Black Guest Star Joshua Cox Guest Star Douglas Netter Executive Producer J. Michael Straczynski Executive Producer, Writer Menachem Binetski Director