Edward James Olmos Cmdr. William Adama Actor Mary McDonnell President Laura Roslin Actor Katee Sackhoff Lt. Kara "Starbuck" Thrace Actor Jamie Bamber Capt. Lee "Apollo" Adama Actor James Callis Dr. Gaius Baltar Actor Tricia Helfer Number Six Actor Grace Park Lt. Sharon "Boomer" Valerii Actor Michael Hogan Col. Saul Tigh Actor Aaron Douglas Chief Galen Tyrol Actor Tahmoh Penikett Lt. Karl "Helo" Agathon Actor Paul Campbell Billy Keikeya Actor Alessandro Juliani Lt. Felix Gaeta Actor Kandyse McClure Officer Anastasia Dualla Actor Donnelly Rhodes Dr. Cottle Actor Richard Hatch Tom Zarek Actor James Remar Meier Actor Leah Cairns Racetrack Actor Jeff Woolnough Director David Eick Writer