Battlestar Galactica 8.8 When an old enemy, the Cylons, resurfaces and obliterate the 12 colonies, the crew of the aged Galactica protects a small civilian fleet - the last of humanity - as they journey toward the fabled 13th colony of Earth. Edward James Olmos / Mary McDonnell / Jamie Bamber / James Callis / Tricia Helfer / Grace Park / Katee Sackhoff / Michael Hogan / Aaron Douglas / Tahmoh Penikett / Alessandro Juliani / Kandyse McClure / Nicki Clyne / Donnelly Rhodes / Bodie Olmos / Michael Trucco / Leah Cairns / Rekha Sharma Released (2004-2009) Seasons 4 seasons Status ended Add to watch list