Britannia

Kelly Reilly stars as Kerra, a fierce and courageous warrior princess. Kerra is the daughter of the King of the Cantii tribe and becomes a key figure in the conflict between the invading Roman army and the native Britons.

David Morrissey portrays General Aulus Plautius, the ambitious and cunning Roman commander. Aulus is determined to conquer Britannia and bring it under Roman rule. He is willing to use any means necessary to achieve his goals.

Nikolaj Lie Kaas plays Divis, a disillusioned Druid. Divis possesses mystical powers and has a complicated relationship with both the Roman invaders and the native Britons. He becomes an important advisor and ally to Kerra.

Zoë Wanamaker takes on the role of Queen Antedia, the fierce and vengeful leader of the Regni tribe. Queen Antedia is a formidable warrior who is determined to protect her people and resist the Roman invasion.

Stanley Weber portrays Lindon, a loyal soldier in the Roman army. Lindon is torn between his duty to Rome and his love for Kerra, which puts him in a precarious position during the conflict.

Eleanor Worthington-Cox plays Cait, a young girl with mysterious powers. Cait is caught in the middle of the war between the Romans and the Britons, and her unique abilities make her a target for both sides.

Hugo Speer portrays Lucius, a high-ranking Roman officer and advisor to General Aulus Plautius. Lucius is a seasoned veteran of the Roman army and plays a crucial role in the Roman invasion of Britannia.

Annabel Scholey stars as Amena, a brave Briton warrior. Amena fights alongside Kerra and becomes a trusted ally in the resistance against the Roman invaders. She is skilled in combat and fiercely loyal to her people.