Hauptrollen

Colin Morgan -Merlin (Emrys)
Bradley James- Arthur Pendragon
Katie McGrath- Morgana
Richard Wilson- Gaius
Anthony Head -Uther Pendragon
Angel Coulby -Guinevere (Gwen)
-Drache (Kilgharrah)
Nathaniel Parker- Agravaine


Ritter von Camelot

Santiago Cabrera -Sir Lancelot
Rupert Young -Sir Leon
Eoin Macken -Sir Gwaine
Adetomiwa Edun- Sir Elyan
Tom Hopper- Sir Percival
Alexander Vlahos-Mordred
Kyle Redmond-Jones -Sir Owain
Paul Kynman- Sir Cador


Andere Ritter


Will Mellor- Valiant
Rick English -Tristan de Bois (Schwarzer Ritter)
John Hopkins- Sir Oswald

andere Edelleute

Eve Myles- Mary Collins / Lady Helen
Fintan McKeown- König Odin
Sarah Parish- Lady Catrina
David Schofield -König Alined
Mark Lewis Jones- König Olaf
Georgia Moffett-Lady Vivian
Georgia King -Prinzessin Elena
Lindsay Duncan- Königin Annis
Janet Montgomery- Prinzessin Mithian


Feinde

Michelle Ryan-Nimueh
Emilia Fox- Morgause
Tom Ellis- Cenred
Alexander Siddig- Kanen
Cal Macaninch-Tauren
Adrian Lester- Myror
James Cosmo- Hengist
Terence Maynard -Helios
Charles Dance- Aredian
Karl Johnson -Taliesin

Zauberer

Julian Rhind-Tutt- Edwin Muirden
Frank Finlay- Anhora
Mackenzie Crook -Cedric
Liam Cunningham-Ruadan
Channing Tatum-Daren Athéron (Free)

Druiden

Colin Salmon- Aglain
Alexandra Dowling- Kara

Sonstige

Caroline Faber-Hunith
Gary Lewis- Alator
Sophie Rundle-Sefa
Michael Cronin-Geoffrey (Bibliothekar)
Joe Dempsie- William
Laura Donnelly -Freya
John Lynch-Balinor
James Callis- Julius Borden
Charlene McKanna-Lamia
Ben Daniels- Tristan
Miranda Raison -Isolde