Full cast of Merlin

Sam Neill

Merlin

2 episodes

Paul Curran

Arthur

2 episodes

Isabella Rossellini

Nimue

2 episodes

Jeremy Sheffield

Lancelot

2 episodes

Lena Headey

Guinevere

2 episodes

Martin Short

Frik

2 episodes

Mark Jax

Uther

2 episodes

Helena Bonham Carter

Morgan le Fay

2 episodes

Rutger Hauer

King Vortingern

2 episodes

Miranda Richardson

Lady of the Lake / Mab

2 episodes

John Gielgud

King Constant

2 episodes

James Earl Jones

Rock of Ages

2 episodes

Roger Ashton-Griffiths

Sir Boris

2 episodes

Nicholas Clay

Lord Leo

2 episodes

Daniel Brocklebank

Young Merlin

2 episodes

Billie Whitelaw

Ambrosia

2 episodes

Jason Done

Mordred

2 episodes

John McEnery

Lord Ardente

2 episodes

Christian Simpson

Vortigern's Guard

2 episodes

Sebastian Roché

Gawain

2 episodes

Timothy Bateson

Father Abbot

2 episodes

Vernon Dobtcheff

1st Physician

2 episodes

Joseph Mawle

Village Man (uncredited)

2 episodes

Thomas Lockyer

Cornwall

2 episodes

Agnieszka Koson

Young Nimue

2 episodes