 The series was conceived by Rockne S. O'Bannon and produced by The Jim Henson Company and Hallmark Entertainment.The Jim Henson Company was responsible for the various alien make-up and prosthetics, and two regular characters (the animatronic puppets Rygel and Pilot) are entirely Creature Shop creations.Although the series was planned for five seasons, it was abruptly cancelled after production had ended on its fourth season, ending the series on a cliffhanger.