Robert Boyd Holbrook (born September 1, 1981) is an American actor. He has starred in the Netflix series Narcos (2015-2017) as DEA agent Steve Murphy and The Sandman (2022-) as the Corinthian, as well as in the History miniseries Hatfields & McCoys as "Cap" Hatfield. He starred as Billy in The Skeleton Twins (2014), Peter Kristo in A Walk Among the Tombstones (2014), Donald Pierce in Logan (2017), Quinn McKenna in The Predator (2018), Pinkins in O.G. (2019), Thomas Lockhart in In the Shadow of the Moon (2019), and Ty Shaw in Vengeance (2022).