Edward James Olmos as Commander William Adama

Dean Stockwell as Brother Cavil

Michael Trucco as Samuel Anders

Grace Park as Lt. Sharon 'Boomer' Valerii

Michael Hogan as Colonel Saul Tigh

Callum Keith Rennie as Leoben Conoy

Kate Vernon as Ellen Tigh

Rick Worthy as Simon

Lymari Nadal as Giana O'Neill

Matthew Bennett as Aaron Doral

Rekha Sharma as Tory Foster

Tricia Helfer as Number Six / Shelly Godfrey

Alisen Down as Jean Barolay

Tiffany Lyndall-Knight as Hybrid

Alonso Oyarzun as Crewman Specialist Socinus

Colin Corrigan as Nowart

Diego Diablo Del Mar as Hillard

Aaron Douglas as Chief Galen Tyrol

Maya Washington as Sue Shaun

Luvia Petersen as Kai

Richard Yearwood as Marine

Alex Ferris as Boy

Tommy Europe as Rally

Bruce Dawson as Coach

Lawrence Haegert as Wheeler

Gina Vultaggio as Jemmy

Leah Cairns as Lt. Margaret 'Racetrack' Edmondson (archive footage) (uncredited)

Nicki Clyne as Cally Henderson (archive footage) (uncredited)

Alessandro Juliani as Felix Gaeta (archive footage) (uncredited)

Lucy Lawless as D'Anna Biers (archive footage) (uncredited)

Kandyse McClure as Anastasia Dualla (archive footage) (uncredited)

Tahmoh Penikett as Karl Agathon (archive footage) (uncredited)

Katee Sackhoff as Kara Thrace (archive footage) (uncredited)