With King Uther's sudden death, chaos threatens to engulf Britain. The sorcerer Merlin has visions of a dark future and installs young and impetuous Arthur, Uther's unknown son and heir raised as a commoner, as the new king. The two install themselves in Castle Camelot with their allies, which include Arthur's biological mother, his foster brother, and a quartet of loyal warriors. From Camelot, Arthur tries to build a new and better Britain, where people can live in peace. Meanwhile, Arthur's cold half-sister Morgan plots to take the crown from him. Banished by Uther, who was responsible for her mother's murder to put Arthur's mother on the throne, Morgan is responsible for Uther's death and wants to rule as his successor. Aided by her loyal maid Vivian and the devious nun Sybil, Morgan takes up residence in Castle Pendragon, from where she schemes against Arthur.

Cast & crew

Michael Hirst

Creator

Chris Chibnall

Creator

Joseph Fiennes

Merlin

Jamie Campbell Bower

King Arthur

Tamsin Egerton

Guinevere

Peter Mooney

Sir Kay

Philip Winchester

Leontes

Eva Green

Morgan Pendragon

Diarmaid Murtagh

Brastias

Clive Standen

Gawain

Claire Forlani

Queen Igraine

J

Jamie Downey

Ulfius

Chipo Chung

Vivian

Lara Jean Chorostecki

Bridget

Sinéad Cusack

Sybil

E

Ed Cosgrave

Borin

Sean Pertwee

Ector

James Purefoy

King Lot

Dara Devaney

Harwel

Sebastian Koch

King Uther

Daragh O'Malley

Leodegrance

P

Paul McGlinchey

Wallace

Seasons

10 episodes

Season 12011 · 10 episodes