J.K. Simmonsscreen performanceJ.K. Simmons plays O'Brien in Terminator Genisys.
1 linked movie guide in this sequence
FILM POSTER · Terminator Genisys2 current MoviHero film mappings
O'Brien
Film guide, starting point, and performer.
O'Brien appears in Terminator Genisys (2015), portrayed by J.K. Simmons. This page focuses on that specific screen performance and the movie around it.
Film guide · 1 film · 2015 · 1 performerTHE MOVIE
O'Brien on screen
One focused screen portrayal, with the performer and movie linked directly below.
Film guide · 1 film · 2015Main sequence runtime: 2h 6m
About the scores
Scores shown are MoviHero movie-guide scores. Missing scores stay blank, and tied top scores remain tied.
- 01MoviHero score77/100WORTH IT
THE PERFORMANCE
Who plays O'Brien?
Meet the performer and open their full MoviHero profile. Coverage below refers to linked movie guides in this sequence.
J.K. Simmonsscreen performanceWHY THE CHARACTER WORKS
What defines O'Brien
J.K. Simmons’s performance in Terminator Genisys is the center of this character page. With only one film in the current screen path, the useful comparison is between the character, the performer and the role that film asks them to play—not an invented larger timeline.