
Mark O'Brien
6 titles in the 𝕏TVDb catalog

Nuremberg
2025
as Colonel John Amen

Ready or Not
2019
as Alex

Marriage Story
2019
as Carter Mitchum

Bad Times at the El Royale
2018
as Larsen Rogers

Arrival
2016
as Captain Marks

Republic of Doyle
2010
as Des Courtney