Deanna Dunagan and Amy Morton in August: Osage County

The London cast includes original cast members Ian Barford as Little Charles, Mariann Mayberry as Karen Weston, Amy Morton as Barbara Fordham, Sally Murphy as Ivy Weston, Jeff Perry as Bill Fordham, Rondi Reed as Mattie Fay Aiken, Deanna Dunagan as Violet Weston, Kimberly Guerrero as Johnna Longwell and Troy West as Sheriff Deon Gilbeau. Two other actors who have appeared in the Broadway production, Michael McGuire and Molly Ransom, will play Beverly Weston and Jean Fordham, respectively. Paul Vincent O'Connor has been cast as Charlie Aiken. The role of Steve Heidebrecht will be announced shortly.

Nicholas Hytner, Director of the National Theatre said in a statement, "The National Theatre is thrilled to renew its association with Steppenwolf, and to host the company that represents for London audiences the American theatre at its most exciting. August: Osage County is a tremendous play; the Steppenwolf production of it lifted me out of my seat. I could not be happier to be presenting it to the British public and to be continuing the relationship between the great theatre cities of London and Chicago."

August: Osage County tells the explosively funny tale of the Weston clan, which reunites at home in Oklahoma after the disappearance of the family patriarch. With insight and humor, Letts' critically acclaimed play paints a vivid portrait of a Midwestern family at a critical turning point.

The National Theatre production features the original Chicago and Broadway design team: Tony winner Todd Rosenthal (sets ), Ana Kuzmanic (costumes), Tony nominee Ann G. Wrightson (lights), Richard Woodbury (sound), David Singer (original music) and Chuck Coyl (fight choreography).