THE STAIRCASE on HBO Max is a dramatization of the Netflix documentary of the same name.
More castmembers are being revealed.
Colin Firth leads the castCredit: Getty
The Staircase cast: Who stars in the HBO Max series?
Colin Firth as Michael Peterson
Eight years later, he was granted a new trial, took an Alford plea, and was released.
Peterson infamously said that he believed an owl killed his wife.
The real Michael PetersonCredit: (c) 2017 Shutterstock. No use without permission.
Toni Collette as Kathleen Peterson
Collette, an Oscar-nominated Australian actress who first broke into the mainstream with her role in Muriel’s Wedding, will be playing Kathleen Peterson.
Kathleen Peterson, unfortunately, died on December 9, 2001, and it was her death that sparked the investigation into her husband, Michael Peterson.
Her death also re-opened an investigation into the death of Elizabeth Ratliff.
Toni Collette as Kathleen PetersonCredit: Getty Images – Getty
Sophie Turner as Margaret Ratliff
Announced as a main cast member, Turner — who legally changed her last name to Jonas when she married pop star, Joe Jonas — will play Margaret Ratliff, one of Peterson’s adopted daughters.
Margaret Ratliff’s mother was Elizabeth Ratliff.
Sophie Turner as Margaret RatliffCredit: PA
Parker Posey as Freda Black
Acclaimed actress Parker Posey — best known for her work with satirist Christopher Guest — will be playing prosecutor Freda Black.
While Black was known as a fierce prosecutor, her story doesn’t have a happy ending.
She died at the age of 57 after battling alcoholism and end-stage liver failure due to alcoholism.
The prosecution put on a strong caseCredit: AP
Rosemary DeWitt as Candace Zamperini
Rosemary DeWitt is coming off her successful run on Little Fires Everywhere to join The Staircase cast.
DeWitt will play Candace Zamperini, Kathleen Peterson’s sister.
Zamperini is a controversial figure because of her demonstrable rage towards Michael Peterson throughout the trial.
Michael and Kathleen Peterson in happier timesCredit: whatsup/netflix
Juliette Binoche in an as-yet-undisclosed role
French actress Juliette Binoche is the final notable member of The Staircase on HBO Max.
But according to sources, her role is being kept “under wraps” for now.
The Staircase will be written and directed by Antonio Campos (The Devil All the Time, The Sinner) and Maggie Cohn (American Crime Story), who serve as showrunners.
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