Trivia

Eva Green's first appearance in a television series.

According to series creator Chris Chibnall, the principal source material for this series is the book "Le Morte d' Arthur" by Sir Thomas Malory.

Tamsin Edgerton played young Morgana in The Mists of Avalon.

Daragh O'Malley and James Purefoy had previously worked together in Sharpe's Sword (1995).

Jamie Campbell-Bower works with Joseph Fiennes in this series. He also was in Harry Potter and the Deathly Hallows--Part One with Joseph's brother Ralph, respectively portraying the young Grindelwald and Lord Voldemort. Only the adult Grindelwald appeared in a scene with Voldemort, however.