The Winter King (TV series)

The story is a retelling of the Arthurian legend and takes place in Post-Roman Dark Age Britain, a land where the warlord Arthur has been banished and Merlin has disappeared, Saxons are invading and a child-king sits unprotected on the throne. We meet a vain and unpopular Lancelot; an ambitious and scheming Guinevere; Merlin, who is a more absent Druid than a mystic magician; and Mordred, who is Uther's grandson and legitimate heir. The tale is told by the elderly Saxon-born monk Derfel Cadarn for Igraine, a young queen, long after the death of Arthur.[2]

• Iain De Caestecker as Arthur Pendragon, the illegitimate son of King Uther, an exiled warlord who returns to Britain.[3]
• Jordan Alexandra as Guinevere, Arthur's wife, she is a hard, ambitious woman who cares very little for others and seems only to want power and a high social status.[4]
• Stuart Campbell as Derfel Cadarn, the narrator of the story, he is a warrior and disciple of Arthur and even though he sees Arthur's flaws, he recognizes greatness and knows that Arthur is the only hope for Britain.[5]
• Ellie James as Nimueh, a priestess saved by Merlin because she can see the Gods - he gives her power, wisdom and learning.[6]
• Eddie Marsan as Uther, High King of all Dumnonia, old and battle tested. He commands incredible authority, over almost all, bar Merlin.[6]
• Nathaniel Martello-White as Merlin, a politician, powerful, enlightened, and absolute. Fearless in the face of a King’s wrath he follows his connection to his Gods in all things.[6]
• Daniel Ings as Owain, Uther's champion of Dumnonia, an experienced but not always honest senior warrior.[7]
• Ken Nwosu as Sagramor, a fierce Numidian from Africa Nova and veteran of the old Roman army who has followed Arthur to Britain after the collapse of the Western Roman Empire.[8]
• Andrew Gower as Sansum, loosely based on the Cornish saint Samson of Dol, a Catholic priest and later a Bishop. His disciple is Derfel Cadarn. Sansum is described as unsympathetic and intriguing.[9]
• Valene Kane as Morgan, Arthur's half-sister and another bastard child of King Uther. She is a sharp-tongued and independent minded pagan and student of Merlin.[6]
• Simon Merrells as Gundleus, King of rival kingdom Siluria. Imposing and savage, Gundleus is prepared to slaughter whoever he needs to secure power.[6]
• Steven Elder as Bishop Bedwin[10]
• Aneirin Hughes as Gorfydd[11]
• Emily John as Ceinwyn[12]
• Tatjana Nardone as Ladwys[13]
• Billy Postlethwaite as Cadwys[14]
• Enoch Frost as Ligessac, Captain of the King's Guard.

• The Winter King at IMDb