Aithusa (episode)

Aithusa is the fourth episode of the fourth series of Merlin.

Synopsis
The mysterious Julius Borden arrives in Camelot with news of a magical secret that threatens to change the landscape of the kingdom for ever, as the fantasy drama continues. He has located the final part of the key to the tomb of Ashkanar – an ancient mausoleum which holds a very special treasure: the last remaining dragon's egg.Merlin is understandably drawn in by Borden's news and promises to help him. But just who is this enigmatic stranger and, more importantly, what does he really want with the egg?

Cast

 * Merlin - Colin Morgan
 * Great Dragon - John Hurt
 * King Arthur - Bradley James
 * Gaius - Richard Wilson
 * Julius Borden - James Callis
 * Agravaine - Nathaniel Parker
 * Sir Leon - Rupert Young
 * Sir Gwaine - Eoin Macken
 * Sir Elyan - Adetomiwa Edun
 * Sir Percival - Tom Hopper
 * Iseldir - Trevor Sellers

Broadcast​
22 October 2011 at 8.15pm on BBC One and BBC One HD

Trivia
TBA