'Game of Thrones' Player Cries For His 'Mama'

[caption id="attachment_79149" align="alignleft" width="300" caption="Getty Images"]Nikolaj Coster-Waldau[/caption]

Nikolaj Coster-Waldau will soon know the horrors of raising creepy kids.

The "Game of Thrones" star trades medieval melodrama for a good old-fashioned horror show as he steps into the world of "Mama," according to Heat Vision.

Coster-Waldau joins current "It" girl Jessica Chastain in the dark yarn about a married couple who take in their long-lost nieces and nephews when they're suddenly found after living in the forest for five years. Then murders start happening and it becomes clear that there are some sinister supernatural forces at work.

"Mama" will be directed by Andres Muschietti, who's expanding the story he first told in his 2008 Spanish-language short film. Not surprisingly, the film will be executive produced by Guillermo del Toro.

Nikolaj Coster-Waldau is probably best known for his role as Jaime Lannister on "Game of Thrones." He's also getting some buzz for the upcoming Norwegian thriller, "Headhunters," and plays a younger version of Sam Shepard's Butch Cassidy in the new western, "Blackthorn."

"Mama" begins production in Toronto on Oct. 3.