Portrait of Jack O'Brien

Jack O'Brien

Bio: Jack O'Brien (born June 11, 2005) is an Irish-American actor, photographer, and editor. They began acting in independent short films at nineteen, and was most recently featured in director Logan Agnew's Training Day (2026)
Born: Sat, Jun 11 2005
Birthplace: Fort Collins, Colorado
Jack O'Brien is 20 years old
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Movies (As Crew)

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Poster of Training Day
Training Day
Jack O'Brien was 20 in Training Day as 'Cinematography, Editor'.
Movie Released: Tue, Mar 10 2026

TV Shows (As Crew)

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Ages in TV shows are based off the first air date and may not be accurate. View individual episode details for accurate ages