Jamie Campbell Bower

King Arthur

Eva Green

Morgan

Joseph Fiennes

Merlin

Tamsin Egerton

Guinevere

Philip Winchester

Leontes

Peter Mooney

Sir Kay

Claire Forlani

Queen Igraine

Chipo Chung

Sinéad Cusack

Sybil

Clive Standen

Gawain

Sebastian Koch

King Uther Pendragon

James Purefoy

King Lot

Diarmaid Murtagh

Brastias

Sebastian Spence

Sir Lucan

Jamie Downey

Ulfius

Lara Jean Chorostecki

Bridget

Daragh O'Malley

Leodegrance

Sean Pertwee

Ector