Frank Grillo

Frank Anthony Grillo is an American actor and martial artist. He is known for playing Brock Rumlow / Crossbones in the superhero franchise Marvel Cinematic Universe (MCU), Sergeant Leo Barnes in The Purge franchise, and Rick Flag Sr. in the DC Universe (DCU). He has also appeared in Warrior (2011), The Grey (2011), End of Watch (2012), Zero Dark Thirty (2012), Wolf Warrior 2 and Wheelman, and Boss Level (2020).