Sweeney was born and raised in Shoreham. New York, by an educator father and a municipal government employee mother. He attended Shoreham-Wading River High school where he was a member of Omega Gamma Delta Fraternity and both Tulane and New York University. Before completing his B.F.A. at NYU in 1984. He portrays Larry on Two and a Half Men for Season 11.
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