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Fionn William O'Brien — Marquee

Fionn William O'Brien

Acting

Known for

Criminal Minds

8.3

Criminal Minds

2005 · Series · Calum

Axis

5.1

Axis

2017 · Declan (voice)

Year Popular Top rated

All acting credits

Axis

5.1

Axis

2017 · Declan (voice)

Criminal Minds

8.3

Criminal Minds

2005 · Series · Calum