Suggestions by @markclaunch
221 suggestions
Lily James
as Glenna in Once... The Book of Merlin
Tilda Swinton
as Sir Lavina in Once... The Second Book of Arthur
Sean Bean
as King Uther Pendragon in Once... The First Book of Arthur
Lena Olin
as Queen Igraine in Once... The First Book of Arthur
Liam Neeson
as King Gorlois in Once... The First Book of Arthur
Laurence Fishburne
as Father Ector in Once... The First Book of Arthur
Amanda Seyfried
as Princess Elaine in Once... The Book of Merlin
Maisie Williams
as Sister Elenne in Once... The Book of Merlin
Joan Cusack
as Morgausa in Once... The Book of Merlin
Ian McShane
as King Pelles in Once... The Book of Merlin
Anya Taylor-Joy
as Nimue in Once... The Book of Mordred
Anya Taylor-Joy
as Nimue in Once... The Second Book of Arthur
David Tennant
as Merlin in Once... The Book of Merlin
Angelina Jolie
as Vivian in Once... The Book of Merlin
Natalie Dormer
as Morgause in Once... The Book of Merlin
Roman Griffin Davis
as Young Merlin in Once... The Book of Merlin
Zoe Saldaña
as Princess Isolde in Once... The Book of Merlin
Helena Bonham Carter
as Queen Jezzel in Once... The Book of Merlin
Christopher Eccleston
as King Anguish in Once... The Book of Merlin
Forest Whitaker
as The Shaman Dagara in Once... The First Book of Arthur