Susan Ivanova discovers a derelict spaceship in hyperspace. They tow it back to Babylon 5, then strange things start happening. People are being telepathically taken over by aliens from another (third)space.
Bruce Boxleitner
Capt. John J. Sheridan
Claudia Christian
Susan Ivanova
Mira Furlan
Delenn
Shari Belafonte
Elizabeth Trent
Stephen Furst
Vir Cotto
Patricia Tallman
Lyta Alexander
Jeff Conaway
Zack Allen
Clyde Kusatsu
Bill Morishi
