Series 4



 Series 4 of Merlin will air in autumn 2011. Its air date is not yet known. The series was originally cut to ten episodes from the previous series' 13 due to financial issues. However, Johnny Capps revealed on 18 March 2011 that the show has been increased to its original 13 episodes, opening with a two-parter. Filming started in mid-March 2011 in Cardiff, Wales and Pierrefonds, France. This season is said to be darker and mature than the rest, with the other three having a few violent scenes, and this one having much more. THE OFFICIAL AIR DATE FOR MERLIN SEASON 4 IS OCTOBER THE 8th!!! Most characters will show a darker side to their personality. The offical tagline for the fourth series is: The Darkest Hour Is Just Before The Dawn.

Trailers/Previews

 * Official Trailer shown at Comic-Con: http://www.youtube.com/watch?v=Ru3dJ0gpbwU
 * Offical Poster from Comic-Con:here.
 * Official Bloopers shown at Comic-Com: http://www.youtube.com/watch?v=zslj5qZ8W_I

Confirmed Facts

 * The series will open with a two parter called Revival of the Witch.
 * Revival of the Witch will take place a year after the events of The Coming of Arthur.
 * Nathaniel Parker will play Arthur 's uncle Agravaine.
 * Arthur will become either King or Prince Regent.
 * Morgana will return.
 * Gwen and Arthur will get married
 * .Morgause will be brought back by Morgana and thus return.
 * Merlin will be injured and perhaps lose his powers.
 * Merlin will show a darker and damaged side to his personality.
 * Merlin will disguise as Dragoon the Great (Old Merlin) again.
 * Gwen has been looking after the King during the period of time between the series.
 * A sword will be burned near the start of the series.
 * There will be more Knights of the Round Table.
 * Agravaine will be the new enemy within the walls of Camelot, laying a claim to the throne.
 * Merlin will try to discover his destiny as Emrys, and will find out there are massive reasons why he can't reveal his magic.
 * Morgause and Morgana will start looking for Emrys, unaware that he is Merlin.
 * Merlin will somehow be stripped of his powers (possibly temporarily).
 * Lancelot has a major role in Revival of the Witch.
 * The Arthur/Gwen/Lancelot love triangle will be a major plot line.
 * Lancelot will be declared dead, which causes mourning among Merlin, Arthur, the knights and especially Gwen.
 * There will be more stories about Uther's past.
 * Arthur and Gwen will become engaged.
 * The way Lancelot is portrayed may be substantially different from the legends.
 * Morgana's magic has finally become as powerful as Merlin's, and possibly more powerful than Morgause's.
 * A battle for power will occur between Arthur and Uther.
 * Morgana becomes quite nomadic, moving from one place to another.
 * Lancelot will meet the Great Dragon.
 * Grettir will make an appearance.
 * The Isle of the Blessed will reappear.
 * Gwen and Morgana will learn about Merlin's powers.
 * Hunith will return.
 * Merlin and Gwen's friendship will be explored this series.
 * Gwen and Lancelot may be under a love enchantment, causing a fight between Lancelot and Arthur. In the official trailer, Guinevere is shown to be wearing a suspicious bracelet, while kissing Lancelot. What's more Lancelot shows suspicious behavior, since he attacks Arthur. (Up here is possibly true) The most likely possibility is that Agravaine has put a spell on them with Gilli's help causing a fight and trouble. (This is less likely due to Gilli is not confirmed to be in the series yet, if he is where's the proof?)
 * Merlin will have a new reason to hide his magic from Arthur.
 * Arthur will learn the truth of his birth again.
 * There will be an episode that focuses solely on dragons and the future of the dragons.
 * Uther is in a mental state that prevents him from ruling so Merlin gets the biggest chance that he's ever going to get, to guide the future in the direction that he wants, the destiny that he is set to achieve. He wants to see magic return to the kingdom under the rule of Arthur.
 * Merlin is going to struggle keeping his friendship with Arthur going on, but he is met with a wall and he's not sure how to deal with that.
 * Merlin's greatest fear is a reincarnation of Uther in Arthur: if there's any sign that Arthur is thinking like Uther, then he can never bring his magic to the foreground. He can never get the kingdom he wants to have.
 * Merlin will dress like a knight of camelot. (Not sure why thought but was confirmed by Colin Morgan)
 * Arthur is walking towards the very noble, heroic king that is spoken of in the legends.
 * There is someone or some people/creatures who have no faces who attack a village.
 * There will be a dragon egg in one of the episodes.
 * Uther is closer and warmer towards Arthur. There's some really nice, emotional stuff between them.
 * As per usual Uther and Merlin will have just a little interaction.
 * Merlin will be sympathetic towards Uther but ultimately loyal to Arthur.
 * We'll see a lot more from Arthur's knights as their characters are explored.
 * We can expect series 4 to be darker and to see the return of Excalibur.
 * With Uther a broken man, Prince Arthur has the emotional dilemma of either taking charge or waiting for his father to recover.
 * Uther is a broken man this series and this leaves a power vacum in Camelot which leaves Arthur with a choice.
 * Somebody is going to be burnt at the stake

Rumours

 * Nimueh will be revived by Morgause and will return.
 * Freya will return. This is likely.
 * Morgana and Morgause will form an alliance with King Alined.
 * Morgana will have somewhat of a reluctant romance, possibly with Gwaine.
 * Mordred will return.
 * Uther will die.
 * Gwaine will be the second knight out of The Knights of the Round Table to find out about Merlins secret.
 * Morgause will kill Gaius.
 * The Sidhe will reappear.
 * Avalon will reappear.
 * Arthur's mother Ygraine will appear (in a vision or flashback).
 * Cornelius Sigan's soul will possess another person.
 * Mordred and Arthur will meet again.
 * Alice will return.
 * Gaius departs Camelot with Alice.
 * Mordred kills Uther.


 * Merlin meets Morgana at the Isle of the Blessed.

Main Cast

 * Colin Morgan as Merlin
 * Bradley James as Arthur Pendragon
 * Katie McGrath as Morgana Pendragon
 * Angel Coulby as Guinevere
 * Anthony Head as Uther Pendragon
 * Richard Wilson as Gaius

Cast to Reappear

 * Rupert Young as Leon
 * Emilia Fox as Morgause
 * John Hurt as the voice of Kilgharrah
 * Santiago Cabrera as Lancelot
 * Tom Hopper as Percival
 * Adetomiwa Edun as Elyan
 * Eoin Macken as Gwaine
 * Caroline Faber as Hunith
 * Asa Butterfield as Mordred
 * Warwick Davis as Grettir
 * Alice Patten as Ygraine Pendragon

Rumoured Cast

 * David Schofield as Alined
 * Laura Donnelly as Freya
 * Harry Melling as Gilli
 * Michelle Ryan as Nimueh (implied on her BBC profile)
 * Georgia Moffett as Lady Vivian

New Cast

 * Phil Davis as The Gleeman
 * Nathaniel Parker as Agravaine
 * Charlenne MacKenna as Lamia
 * Hayley Bishop as Caelia
 * James Callis as TBA
 * Gemma Jones as The Cailleach (gatekeeper to the spirit world)
 * Lindsay Duncan as Queen Annis
 * Zee Asha as Audrey
 * Steven Hartley as King Carleon
 * Emma Tainton as Servant
 * Andrew Fowler as Knight of Camelot
 * Sarah Beck Mather as Vilia
 * Zig Byfield as Goron
 * Anya Beth-Davies as girl (one of the girls who gets saved by Vikings)
 * Terence Maynard as Helius in 3 episodes
 * Gary Lewis as sorcerer