Speaking to French TV magazine Séries Mag, Morgan revealed: “I think it’s time that Arthur learns the truth. But it will be a real test for both of them and it’s uncertain if their friendship will survive such a revelation.”

He added: “Arthur is so convinced that magic is evil and killed his father and his mother that he’ll struggle to remain objective. And Morgana and her scheming will also have an influence on Arthur’s opinion on the use of magic.”

Co-creator Julian Murphy has teased that Series 5 will see Merlin become a “much more stronger, focused and powerful character”.

Do you think it’s time for Arthur to discover the truth? Let us know below…

> Order the Series 5 Volume 1 DVD on Amazon.

Watch a clip from Series 4…