Ben Browder Cdr. John Crichton Actor Claudia Black Officer Aeryn Sun Actor Anthony Simcoe General Ka D' Argo Actor John Eccleston Actor Sean Masterson Actor Lani John Tupu Pilot (voice) Actor Gigi Edgley Chiana Actor Wayne Pygram Scorpius Actor Raelee Hill Sikozu Actor Melissa Jaffer Noranti Actor Jonathan Hardy Rygel (voice) Actor Sandy Gore Nurse Vreena Guest Star Sacha Horler Prisoner Morrock Guest Star Jason Clarke Captain Jenek , Letchner Guest Star Louise Crawford Second Prisoner Guest Star Mike Duncan Assassination Victim Guest Star Brian Henson Executive Producer Kris Noble Executive Producer Rockne S. O'Bannon Executive Producer Robert A. Halmi Executive Producer Matthew Carroll Producer Peter Andrikidis Director Justin Monjo Writer