Here's the Cast of True Detective's Mysterious Third Season

Mamie Gummer as Lucy Purcell

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Mamie Gummer, daughter of Meryl Streep, is the latest addition to the cast. Gummer's character Lucy is "a young mother of two at the center of a tragic crime."

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Stephen Dorff as Roland West

Image Source: Getty / Jason LaVeris

Dorff joins as an Arkansas State investigator named Roland who is partners with Wayne Hays (Mahershala Ali). When it comes to his journey, Roland's "life and career [are] influenced over three decades by a baffling crime."

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Mahershala Ali as Wayne Hays

Image Source: Getty / Jason LaVeris

Ali was the first star to join the cast of the third season. He's playing Wayne Hays, a detective from northwestern Arkansas.

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Carmen Ejogo as Amelia Reardon

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Ejogo joined in late 2017 as Amelia, an Arkansas schoolteacher with a connection to two missing children in 1980.

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Scoot McNairy as Tom

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Back in January, HBO added McNairy to the cast as Tom, "a father who suffers a terrible loss that ties his fate to that of two state police detectives over 10 years."

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