Brendan Gleeson will be joined by a new co-star in the third season of acclaimed Stephen King adaptation Mr Mercedes, former Boardwalk Empire actress Meg Steedle. 

US entertainment industry website Deadline.com reports that Steedle, whose other credits include Code Black and The Mysteries of Laura, will play Danielle Sweeney in season three of Mr Mercedes.

Brendan Gleeson as Bill Hodges in Mr Mercedes

Sweeney is the girlfriend of another new Mr Mercedes character, Morris Bellamy (played by Gabriel Ebert), with Bellamy described as "a volatile and charismatic wolf in sheep's clothing".

Production on the third season of Mr Mercedes is continuing in Charleston, South Carolina.

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