Merlin

The Darkest Hour (1)

Season 4    Episode 1
October 1, 2011    44m    TV-PG
75%
Evil sorceress Morgana summons mighty gatekeeper the Cailleach, who opens a door to another world from which hellish creatures pour forth. As Arthur and his loyal knights take up arms, Merlin discovers the only thing that will stop them is an unimaginable sacrifice.
Directed By
Alice Troughton
Written By
Julian Jones
Cast of The Darkest Hour (1)
  • Colin MorganMerlin
  • Angel CoulbyGwen
  • Bradley JamesArthur
  • Katie McGrathMorgana
  • Richard WilsonGaius
  • John HurtThe Great Dragon (voice)
  • Nathaniel ParkerAgravaine de Bois
  • Anthony Stewart HeadUther Pendragon
  • Emilia FoxMorgause
  • Santiago CabreraSir Lancelot
  • Tomiwa EdunSir Elyan
  • Tom HopperSir Percival
  • Rupert YoungSir Leon
  • Eoin MackenSir Gwaine
  • Katie MooreDrea
  • James GreeneFerryman
  • Gemma JonesThe Cailleach
  • Zee AshaAudrey

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