BERLIN — Tom Felton, who portrays Draco Malfoy in the “Harry Potter” franchise and most recently appeared in “Rise of the Planet of the Apes,” and Tony Curran (“The Adventures of Tintin”) have joined the cast of “Labyrinth,” Tandem Communications’ historical miniseries based on Kate Mosse’s bestseller.

The four-hour mini is set against the backdrop of the Crusades and the Cathar massacres, and tells two connected stories set 800 years apart — that of a young woman living in Carcassonne in 1209, and of a modern-day archaeologist who makes a startling discovery in a nearby cave in the South of France.

Felton has signed on for the role of Raymond-Roger de Trencavel, Viscount of Carcassonne, who died in 1209 a martyr while trying to protect his Cathar citizens from the genocide committed by French Catholics.

Curran, who appeared in Tandem’s hit mini “The Pillars of the Earth,” plays ruthless antagonist Guy D’Evereux.

Helmed by Christopher Smith, “Labyrinth” began principal photography this month in Carcassonne in the Aude/Cathar Country in the South of France.

John Hurt, Sebastian Stan, Jessica Brown Findlay and Vanessa Kirby also star.

Tandem is co-producing with Film Africa in association with Ridley Scott and Tony Scott’s Scott Free Films. Locations include Cape Town, South Africa.

Felton and Stan also star in Todd Lincoln’s upcoming thriller “The Apparition,” a U.S.-German co-production from Joel Silver’s Dark Castle Entertainment and Studio Babelsberg.