How old was Dennis O'Neill in…

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Dennis O'Neill was ? in The Lucky Man as 'State Trooper'.

Movie Released: Tue, Jan 16 2018

Dennis O'Neill was ? in The Gray Man as 'Oscar Downey'.

Movie Released: Thu, Aug 30 2007

Dennis O'Neill was ? in Serum as 'Richard'.

Movie Released: Mon, Oct 30 2006

Dennis O'Neill was ? in Commander Kellie & the Superkids: The Sword as 'Professor Timothean'.

Movie Released: Wed, Jan 01 1997

Dennis O'Neill will be 0+ in Dirge as 'Wandering Man'.

Movie Released: Unreleased

Dennis O'Neill will be 0+ in Nightwalkers as 'Father Wells'.

Movie Released: Unreleased

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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