| Edward James Olmos | Admiral William Adama |
| Mary McDonnell | President Laura Roslin |
| Katee Sackhoff | Captain Kara 'Starbuck' Thrace |
| Jamie Bamber | Commander Lee 'Apollo' Adama |
| James Callis | President Gaius Baltar |
| Tricia Helfer | Number Six /
Caprica |
| Grace Park | Lt. Sharon 'Athena' Agathon |
| Michael Hogan | Colonel Saul Tigh |
| Aaron Douglas | Chief Galen Tyrol |
| Tahmoh Penikett | Captain Karl 'Helo' Agathon |
| Nicki Clyne | Crewman Specialist Cally Tyrol |
| Alessandro Juliani | Lt. Felix Gaeta |
| Kandyse McClure | Lt. Anastasia Dualla |
| Lucy Lawless | D'Anna Biers |
| Michael Trucco | Samuel Anders |
| Callum Keith Rennie | Leoben Conoy |
| Kate Vernon | Ellen Tigh |
| Matthew Bennett | Aaron Doral |
| Rekha Sharma | Tory Foster |
| Dean Stockwell | John Cavil |
| Luciana Carro | Louanne 'Kat' Katraine |
| Christian Tessier | Tucker 'Duck' Clellan |
| Brad Dryborough | Hoshi |
| Leah Cairns | Racetrack |
| Madeleine Parker | Kacey
(as Madeline Parker) (credit only) |
| Dominic Zamprogna | Jammer |
| Ryan McDonell | Pilot #3 |
| Byron Lawson | Pilot #4 |
| Colin Lawrence | Lt. Hamish 'Skulls' McCall |