Guest Stars Lena Headey as Guinevere Sebastian Roché as Gawain Peter Eyre as Chief Physician Peter Benson as 1st Architect Roger Ashton-Griffiths as Sir Boris Daniel Brocklebank as Young Merlin Jason Done as Mordred Peter Woodthorpe as Soothsayer Vernon Dobtcheff as 1st Physician Paul Curran as Arthur Emma Lewis as Elissa Talula Sheppard as Lady Friend Janine Eser as Lady Elaine John Turner as Lord Lot Rachel Colover as Lady Igraine Justin Girdler as Young Galahad Alice Hamilton as Young Morgan le Fay Agnieszka Kozon as Young Nimue Nicholas Clay as Lord Leo John McEnery as Lord Ardente Keith Baxter as Sir Hector Billie Whitelaw as Ambrosia Timothy Bateson as Father Abbot John Tordoff as New Architect Mark Jax as Uther Pendragon Nickolas Grace as Sir Egbert Jeremy Sheffield as Lancelot Robert Addie as Sir Gilbert Thomas Lockyer as Cornwall Peter Bayliss as 2nd Physician
