Luke Macfarlane, Mark O'Brien, and Hannah John-Kamen in Killjoys (2015)

Lee Pace, Mark O'Brien, and Mackenzie Davis in Halt and Catch Fire (2014)

Mark O'Brien and Kerry Bishé in Halt and Catch Fire (2014)

Mark O'Brien and Mackenzie Davis in Halt and Catch Fire (2014)

Laurence Fishburne, Hugh Dancy, and Mark O'Brien in Hannibal (2013)

Kevin Bacon, Jonathan Tucker, Aldis Hodge, and Mark O'Brien in City on a Hill (2019)

Mark O'Brien in Halt and Catch Fire (2014)

Scoot McNairy, Mark O'Brien and MacKenzie Davis in Halt and Catch Fire (2014)

Mark O'Brien and Georgina Reilly at an event for The Last Tycoon (2016)

Mark O'Brien at an event for The Last Tycoon (2016)

Mark O'Brien at an event for 32nd Film Independent Spirit Awards (2017)

Andie MacDowell, Adam Brody, Nicky Guadagni, John Ralston, Elyse Levesque, Melanie Scrofano, Mark O'Brien, Kristian Bruun, Samara Weaving, Daniela Barbosa, Celine Tsai, and Hanneke Talbot in Ready or Not (2019)