Popsugar Entertainment True Detective True Detective Season 3 Cast Here's the Cast of True Detective's Mysterious Third Season 13 February 2018 by Ryan Roschke Image Source: Getty Almost everyone can agree that the second season of True Detective was a bust. With such a successful first season and a disappointing follow-up, all eyes have now turned to season three. This time around, Nic Pizzolatto will serve as writer and showrunner, and we already have a pretty enticing plot: we'll follow "a macabre crime in the heart of the Ozarks and a mystery that deepens over decades and plays out in three separate time periods." With a great creative team and a solid story, the third time might just be the charm for the floundering series. To add even more confidence to this installment, True Detective has complied a pretty star-studded cast. Check out everyone who's already signed on to brave the latest deadly conundrum. Mamie Gummer as Lucy Purcell Image Source: Getty / Dimitrios Kambouris 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." 1 / 5 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." 2 / 5 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. 3 / 5 Carmen Ejogo as Amelia Reardon Image Source: Getty / Astrid Stawiarz Ejogo joined in late 2017 as Amelia, an Arkansas schoolteacher with a connection to two missing children in 1980. 4 / 5 Scoot McNairy as Tom Image Source: Getty / Amanda Edwards 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." 5 / 5 True DetectiveTVMamie GummerStephen DorffMahershala AliCarmen EjogoScoot McNairy