In the fourth season of this acclaimed series about wizarding world, Merlin faces his toughest challenge yet when Morgana’s blinkered determination threatens not only Arthur’s future, but the very balance of the world. Meanwhile, Arthur faces his first true test as King when he incurs the wrath of the formidable Queen Annis.

• Merlin - Season 4
• John Hurt
• Bradley James
• Colin Morgan
• Johnny Capps
• Julian Jones
• Jake Michie
• Julian Murphy