
Alessandro Antine Nivola (born June 28, 1972) is an American actor. His best-known roles include Pollux Troy in Face/Off (1997), Henry Crawford in Mansfield Park (1999), Billy Brennan in Jurassic Park III (2001), Arthur "Boy" Capel in Coco Before Chanel (2009), Anthony Amado in American Hustle (2013), Peter Forente in A Most Violent Year (2014), Governor Williams in You Were Never Really Here (2017), Mark Madoff in The Wizard of Lies (2017), photojournalist Lee Berger in the miniseries Chimerica (2019), Dickie Moltisanti in The Many Saints of Newark (2021), Detective Hiltz in Amsterdam (2022), and Detective Conley in Boston Strangler (2023).
He has been married to actress Emily Mortimer since 2003; they have two children.

Kraven the Hunter
2024 · as Aleksei Sytsevich

The Brutalist
2024 · as Attila

Face/Off
1997 · as Pollux Troy

American Hustle
2013 · as Anthony Amado

The Neon Demon
2016 · as Robert Sarno

Disobedience
2018 · as Dovid Kuperman

Goal!
2005 · as Gavin Harris

Amsterdam
2022 · as Detective Hiltz

You Were Never Really Here
2017 · as Governor Williams

The Eye
2008 · as Dr. Paul Faulkner

The Room Next Door
2024 · as Policeman

A Most Violent Year
2014 · as Peter Forente

Downton Abbey: The Grand Finale
2025 · as Gus Sambrook

The Many Saints of Newark
2021 · as Dickie Moltisanti

Devil's Knot
2013 · as Terry Hobbs

Boston Strangler
2023 · as Detective Conley

Goal II: Living the Dream
2007 · as Gavin Harris

Inventing the Abbotts
1997 · as Peter Vanlaningham