Frank Anthony Grillo (born June 8, 1965) is an American actor known for his roles in films such as Warrior (2011), The Grey (2012), End of Watch (2012), and Zero Dark Thirty (2012). He had his first leading role in the action horror film The Purge: Anarchy (2014), portraying Sergeant Leo Barnes, a role he reprised in The Purge: Election Year (2016). He also plays the Marvel supervillain Brock Rumlow / Crossbones in the Marvel Cinematic Universe and Big Daddy in the Chinese action film Wolf Warrior 2 (2017), the highest-grossing non-Hollywood film of all time. Also in 2017, he played the main role in the Netflix film Wheelman as a getaway driver in a botched bank heist. Grillo's television work includes recurring roles in the series Battery Park (2000), For the People (2002–2003), The Shield (2002–2003), Prison Break (2005–2006), Blind Justice (2005), and The Kill Point (2007). He has also starred as Hart Jessup in the soap opera Guiding Light (1996–1999), Nick Monohan in the sci-fi series The Gates (2010), and between 2014 and 2017, he played Alvey Kulina in the DirecTV drama series Kingdom.