As ever, the new series of Merlin features an impressive line-up of guest stars. The opening two-part story sees Spooks’ Gemma Jones play the Callieach, the gatekeeper to the spirit world, while Phil Davis (pictured), James Callis and Lindsay Duncan all appear in later episodes.
Merlin premieres on BBC1 on Saturday, October 1

As ever, the new series of Merlin features an impressive line-up of guest stars. The opening two-part story sees Spooks’ Gemma Jones play the Callieach, the gatekeeper to the spirit world, while Phil Davis (pictured), James Callis and Lindsay Duncan all appear in later episodes.Merlin premieres on BBC1 on Saturday, October 1