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- This article pertains to the character as he appears in print. You may be looking for his small-screen counterpart.
Oliver H. Dinsmore is a resident of Chester's Mill, Maine, the son of Alden Dinsmore and older brother of Rory Dinsmore.
On Dome Day, he was present at the crash site on Route 119.
In the 2013 television series, Dinsmore is played by Leon Rippy.