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