Marcia Gay Harden ("Pollock," "Mystic River") and Toby Jones ("Infamous," "The Painted Veil") have joined the cast of the Stephen King adaptation "The Mist".

The script, written by Frank Darabont who also directs, is revolves around a group of people who hole up in a supermarket after a strange mist covers a Maine town and unleashes a swarm of deadly creatures.

Thomas Jane, Andre Braugher, Laurie Holden and Amin Joseph already have been cast. Harden will play Mrs. Carmody, an outspoken and ultimately divisive member of the trapped group.

Jones will play Ollie, a mild-mannered supermarket manager who is forced to take heroic measures to save his life and the lives of others. Shooting begins this week in Louisiana.