Merlin star says finale will provide 'brilliant ending'
21 December 2012 Last updated at 06:09 GMT
Alexander Vlahos, who plays Mordred in Merlin, says that the drama will have an "epic and huge" ending that will please viewers.
The drama is coming to an end with a two-part episode called Diamond of the Day.
The actor warned fans that the episodes contained a "lot of death" but hoped that it would not 'ruin' Christmas for its fans.
The final episodes of Merlin will be on BBC One on 22 and 24 December.