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 View On One Page Photo 3 of 5 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 3 Mahershala Ali as Wayne Hays Ali was the first star to join the cast of the third season. He's playing Wayne Hays, a detective from northwestern Arkansas. Previous Next Start Slideshow True DetectiveTV