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F

Cast & creator

Fionn William O'Brien

Best known for Criminal Minds, The Unholy, Axis

Movies

2

film credits

Series

1

television credits

Career

2

2005–2021 · acting roles

Credit score

6.6

average across scored titles

Signature credits

Known for

Ordered by popularity

Criminal Minds

Criminal Minds

Calum · 2005

The Unholy

The Unholy

Transportation Coordinator · 2021

Axis

Axis

Declan (voice) · 2017

Across film & television

Filmography (3)

Search filmography

Showing 3 of 3 credits

Criminal Minds

Criminal Minds

Calum

The Unholy

The Unholy

Transportation Coordinator

Axis

Axis

Declan (voice)