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 Guest Star Sam Witwer Crashdown Guest Star Donnelly Rhodes Dr. Cottle Guest Star Jill Teed Sgt. Hadrian Guest Star Dominic Zamprogna Jammer Guest Star Alonso Oyarzun Crewman Specialist Socinus Guest Star Nicki Clyne Crewman Specialist Cally Henderson Guest Star Bodie Olmos Brendan "Hot Dog" Constanza Guest Star Matthew Bennett Aaron Doral Guest Star Christina Schild Playa Kohn Actor Charles Singh Kimmit Guest Star Shaw Madson Marine Corporal Guest Star Nimet Kanji Candace Myson - Tribunal Guest Star Biski Gugushe Reporter Sekou Hamilton Guest Star Morris Chapdelaine Reporter No. 2 Guest Star Ally Warren Reporter No. 4 Guest Star Rod Hardy Director Jeff Vlaming Writer