Battlestar Galactica

Edward James Olmos portrays William Adama, the strong and determined military leader of the human fleet. Adama is a seasoned and respected officer who becomes the commanding officer of the Battlestar Galactica, the last remaining warship of the Twelve Colonies.

Mary McDonnell portrays Laura Roslin, the Secretary of Education who becomes the President of the Twelve Colonies after the devastating Cylon attack. Roslin is a strong and capable leader who navigates the political challenges of leading the human survivors.

Jamie Bamber portrays Lee 'Apollo' Adama, the son of William Adama and a skilled Viper pilot. Apollo struggles with his own morality and his strained relationship with his father as they face the challenges of survival in a hostile universe.

Katee Sackhoff portrays Kara 'Starbuck' Thrace, a fearless and talented Viper pilot. Starbuck is known for her exceptional skills in combat and her rebellious personality, making her a central figure in the ongoing battle against the Cylons.

James Callis portrays Gaius Baltar, a brilliant scientist who inadvertently helps the Cylons destroy the Twelve Colonies. Baltar becomes a complex and morally ambiguous character, torn between his own selfish desires and the need to help humanity survive.

Tricia Helfer portrays Number Six, a Cylon infiltrator who takes on various physical forms throughout the series. Number Six is a seductive and manipulative character who plays a pivotal role in the interactions between humans and Cylons.

Tahmoh Penikett portrays Karl 'Helo' Agathon, a loyal and honorable Viper pilot. Helo is one of the few humans who forms a relationship with a Cylon and grapples with his own identity and loyalty in the midst of the ongoing conflict.

Grace Park portrays Sharon 'Boomer' Valerii, a Cylon sleeper agent who believes she is human. Boomer faces internal struggles as she becomes aware of her true nature and must reconcile her loyalty to the human race with her programming as a Cylon.