Merlin - Season 4 - Eps 9: Lancelot du Lac
When Sir Lancelot returns from the dead, old feelings reignite, as the drama continues. Gwen must fight temptation before she commits an unspeakable act of betrayal; one that would destroy the legacy of Camelot forever. With heads and hearts thrown into turmoil, Merlin becomes suspicious. Can a man really defy death, or is there something more sinister at play?
About Merlin

Title: Merlin
First Air Date: 2008-09-20
Last Air Date: 2012-12-24
Status: Ended
Rating: 7.8/10 (from 1001 votes)
Language: EN
Seasons: 5
Total Episodes: 65
Network: BBC One
Genres: Action & Adventure, Drama, Sci-Fi & Fantasy
Production Companies: Shine TV
Synopsis
The unlikely friendship between Merlin, a young man gifted with extraordinary magical powers, and Prince Arthur, heir to the crown of Camelot.
Cast

Colin Morgan
Merlin

Angel Coulby
Gwen

Bradley James
Arturo Pendragon

Katie McGrath
Morgana

Richard Wilson
Gaius

John Hurt
Kilgharrah (voice)

Tom Hopper
Percival

Rupert Young
Leon