Robert Boyd Holbrook (born c. 1980/1981) is an American actor and model. He has appeared in films such as Milk, Out of the Furnace, Run All Night, A Walk Among the Tombstones and Gone Girl, and starred as DEA agent Steve Murphy in the Netflix series Narcos. In 2012, he also starred in the series Hatfields & McCoys as "Cap" Hatfield. He starred as Donald Pierce in Logan (2017) and Thomas Lockhart in In the Shadow of the Moon (2019).
He is also known as Robert Boyd Holbrook.