David Mar Stefansson



Tanya Tillett
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David Mar Stefansson is an Icelandic screenwriter who was born in Sweden. He wrote his first series KATLA for Netflix and Baltasar Kormákur in 2021, followed by the third season of TRAPPED which premiered on Netflix in 2022.

Starting his career as a journalist in Reykjavik before pursuing his B.A. in Philosophy and Creative Writing from the University of Iceland, Stefánsson later moved to New York City and graduated with honors from Columbia University with an M.F.A. in Screenwriting. A Leifur Eiríksson Fellow and the Television Academy’s Drama Intern of 2017, Stefánsson’s shorts have also been recognized and screened at film festivals all over the world.

Most recently, Stefánsson has been working on the upcoming third season of GANGS OF LONDON for Sky and AMC. His horror feature AUTEUR is also currently in development, with Matt Reeves’ company 6th & Idaho and Zik Zak Filmworks producing.


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