Mariann Mayberry in Steppenwolf's production of Good People.
Mariann Mayberry in the Steppenwolf production of Good People.
(© Michael Brosilow)

Mariann Mayberry, a 24-year ensemble member of Steppenwolf Theatre Company who traveled with the company to Broadway and beyond in Tracy Letts's August: Osage County, died August 1 after a lengthy battle with breast cancer. Mayberry was 52 years old and passed in the company of her friends and family.

In Letts's Pulitzer and Tony-winning dark comedy, Mayberry played Karen Weston. She originated the role in the 2007 Steppenwolf production in Chicago and moved with the show to Broadway, London's National Theatre, and Australia's Sydney Theatre Company. She was also seen on Broadway in Steppenwolf Theatre's 2001 revival of One Flew Over the Cuckoo's Nest and the Lookingglass Theatre Company / Second Stage Theatre production of Metamorphosis.

Mayberry joined the Steppenwolf ensemble in 1993. Her most recent stage credit there was Grand Concourse in 2015. She won a 2013 Jeff Award for her performance in David Lindsay-Abaire's Good People. Among her many other stage productions were Steppenwolf's Russian Transport, Lookingglass's Argonautika, Playwrights Horizons's Go Back to Where You Are, Second Stage's The Notebooks of Leonardo Da Vinci, and Northlight and Alliance's How I Learned to Drive. On television, she has been seen on Person of Interest, three editions of Law & Order, and The Dave Chappelle Show.

Mayberry is survived by her husband, actor Scott Jacek. Steppenwolf has canceled the August 1 performance of Taylor Mac's Hir, which stars Mayberry's August: Osage County colleague Amy Morton. The theater will dim its lights and host a 4pm memorial today in Mayberry's honor at Front Bar.