• 
  Patsy Kensit

  Morgan le Fay, copil
• 
  William Morgan Sheppard

  Gorlois
• 
  Hilary Mason

  Midwife
• 
  Felicity Dean

  Queen Guinevere
• 
  Godfrey James

  Bors
• 
  Richard Beale

  Ector
• 
  Anne Kidd

  Igrayne
• 
  David Robb

  Lancelot

• 
  Geoffrey Bateman

  Gawain
• 
  Peter Burroughs

   Branic (6 episodes, 1979)
• 
  Andrew Burt

  King Arthur
• 
  Denis Carey

   King Pelles (2 episodes, 1979)
• 
  Jon Croft

  Lot
• 
  Anthony Dutton

   Accolon (2 episodes, 1979)
• 
  Robert Eddison

  Merlin

• 
  Steve Hodson

  Mordred
• 
  Tom Kelly

  Bedivere
• 
  Eileen Nicholas

   Margaret (3 episodes, 1979)
• 
  Maureen O'Brien

  Morgan le Fay
• 
  Niall Padden

  Agravain
• 
  Kevin Stoney

   Hermit (2 episodes, 1979)
• 
  Archie Tew

   Gareth (5 episodes, 1979)
• 
  Amanda Wissler

   Eleanor (2 episodes, 1979)