Edward James Olmos Cmdr., Adm. William Adama Actor Mary McDonnell Laura Roslin Actor Katee Sackhoff Capt. 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 Agathon Actor Michael Hogan Colonel Saul Tigh Actor Aaron Douglas Chief Galen Tyrol Actor Tahmoh Penikett Captain Karl "Helo" Agathon Actor Callum Keith Rennie Leoben Conoy Actor Rekha Sharma Tory Foster Actor Michael Rymer Director Mark Verheiden Writer