Andreas Katsulas has passed away from lung cancer at age 59. This is very sad but hardly a surprise, since every reference to Katsulas in a Babylon 5 episode commentary or interview mentions that he was smoking at the time.
Katsulas was one of the true shining stars of Babylon 5, making his character shine despite being buried in makeup and molding.
Babylon 5 from the 1990s now has as many dead castmembers as Star Trek from 1966!