Merlin
Arthur
Nimue
Lancelot
Guinevere
Frik
Uther
Morgan le Fay
King Vortingern
Lady of the Lake / Mab
King Constant
Rock of Ages
Sir Boris
Lord Leo
Young Merlin
Ambrosia
Mordred
Lord Ardente
Vortigern's Guard
Gawain
Father Abbot
1st Physician
Village Man (uncredited)
Cornwall
Young Nimue