Fantasy drama Merlin returns to BBC One for a fourth series next month. CultBox recently took a trip down to the set in Cardiff and chatted to a number of the cast, including Katie McGrath, who plays Morgana.
Watch Katie discuss how the scale of the show’s production has evolved since the first series and working on the new giant green screen…
In our previous exclusive clips, Katie introduces the new series, discusses playing the ‘new Morgana’, reveals her highlights of Comic-Con 2011, ponders the show’s future beyond Series 5 and chats about the show’s international fanbase.