| 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
(credit only) |
| Kandyse McClure | Lt. Anastasia Dualla |
| Lucy Lawless | D'Anna Biers |
| Michael Trucco | Samuel Anders |
| Amanda Plummer | Oracle Selloi |
| Richard Hatch | Tom Zarek |
| Callum Keith Rennie | Leoben Conoy |
| Kate Vernon | Ellen Tigh |
| Donnelly Rhodes | Dr. Cottle |
| Matthew Bennett | Aaron Doral |
| Rekha Sharma | Tory Foster |
| Dean Stockwell | John Cavil |
| Erica Cerra | Maya |
| Luciana Carro | Louanne 'Kat' Katraine |
| Brad Dryborough | Hoshi |
| Leah Cairns | Racetrack |
| Madeleine Parker | Kacey
(as Madeline Parker) |
| Dominic Zamprogna | Jammer |
| Eileen Pedde | Mathias |
| Jen Halley | Seelix
(as Jennifer Halley) |
| Ty Olsson | Captain Kelly |
| Ryan Robbins | Charlie Connor |