‘Stillwater’: Amazon Series Adds Lauren Cohan, Mark O’Brien and Mia Tomlinson to Cast

Lauren Cohan, Mark O’Brien and Mia Tomlinson have joined the cast of “ Stillwater ,” Amazon Prime Video’s series adaptation of Chip Zdarsky and Ramón K Pérez’s graphic novel.

Cohan joins the eight-episode series as Catherine ‘Cat’ Keegan, a former homecoming queen whose small-town charm has sharpened into something fiercer thanks to decades of old grudges and regrets. Deeply loyal to her husband Ted, a sheriff’s deputy, Cat has spent years convincing herself that the things they do to protect the town’s secret are justified. Cohan is best known for her role as Maggie Greene in “The Walking…