Alex Vlahos

Alexander Vlahos is a Welsh actor, writer, and director best known for playing Philippe, Duke of Orléans, in the Canal+ television series Versailles. In 2012, Vlahos took the role of the adult Mordred, in the final series of the BBC One drama Merlin.

Truth or Dare
Firecracker

Merlin · S5, E1

Arthur's Bane, Pt. 1

King Arthur leads a search party on a perilous mission when men start to disappear in the frozen north of Camelot, while Merlin soon finds himself confronting a grave threat.
Merlin · S5, E3

The Death Song of Uther Pendragon

When a stranger gives Arthur the power to summon the dead, the king finds himself torn between head and heart. Unable to resist temptation, he seizes the chance to speak to the person he misses most, his father, Uther. However, the spirit world is a dark and dangerous place, and little does Arthur realise that his decision comes at a terrible price.
Merlin · S5, E5

The Disir

In the inky depths of an ancient pool, three soothsayers cast a dark judgment upon the king of Camelot. Despite Merlin's warnings, headstrong Arthur refuses to take the words of the Disir seriously, and their fury rains down on Camelot. Only the greatest sacrifice can appease them, and with the kingdom in jeopardy, is it one that Arthur is prepared to make?