King Uther
Eddie Marsan
Arthur Pendragon
Iain De Caestecker
Merlin
Nathaniel Martello-White
Morgan
Valene Kane
Derfel Cadarn
Stuart Campbell
Nimue
Ellie James
Gundleus
Simon Merrells
Bishop Bedwin
Steven Elder
Sansum
Andrew Gower
Sagramor
Ken Nwosu
Lanval
Matt Mella
Ladwys
Tatjana Nardone
Lunete
Olumide Olorunfemi
Cadwys
Billy Postlethwaite
Owain
Daniel Ings
Gorfydd
Aneirin Hughes
Ralla
Charlie Duncan
Tewdric
Sagar Arya
Guinevere
Jordan Alexandra
Culwyn
Gwïon Morris Jones
Ceinwyn
Emily John
Tristan
Gabriel Tierney
Raince
Keith Dunphy
Hywel
Sifiso Mazibuko
Norwenna
Grace Ackary
Ligessac
Enoch Frost
Sarlinna
Faith Delaney
Lohilt
San Shella
Dumonian Leader
Cy Foxx
Young Derfel
Jordan Dark
Young Nimue
Lucy Allix
Tattooist
Bryony Morgan
Dumnonian Guard
Rob Murphy
Younger Nimue
Lily Williams
Sylvia
Charlotte Workman
Bowen
Angus Salisbury
Aelle
Craig Parkinson
Brother John
Rhodri Miles
Wenhaver
Miranda Shamiso
Siluarian Warrior
Kevin Metcalfe
Wlenca
Carl Andersson
Bossk
Joshua Frater-Loughlin
Dumnonian Warrior
Oliver Morgan-Thomas
Malldyn
Ned Dennehy
Ultan
Frank Bourke